Approved for public release, distribution is unlimited / North Korea's pursuit of nuclear weapons has shaken the foundations of U.S. policy in Northeast Asia. Because of North Korea's record of state-sponsored terrorism, illicit activities, human rights violations, arms sales, and fiery rhetoric, its development of operational nuclear weapons is deeply disturbing. Although most agree North Korea should not possess nuclear weapons, nobody has a solution. This thesis evaluates three U.S. policy options for North Korean nuclear weapons: incentive-based diplomacy, coercive diplomacy, or military force. It analyzes them according to four criteria: the impact on North Korea's nuclear weapons, the impact on its neighbors (China, Japan, and South Korea), U.S. policy costs, and the precedent for future proliferation. This thesis shows that diplomacy will fail to achieve U.S. objectives for three reasons: lack of trust, DPRK reluctance to permit transparency, and the difficulty of conducting multilateral coercive diplomacy. Ultimately, Deputy Secretary of State Richard Armitage's question must be answered: "What price is the United States willing to pay to disarm North Korean nuclear weapons?" If Washington is unwilling to back a threat of military force, it should not risk coercive diplomacy. Likewise, U.S. leaders may need to decide between maintaining the U.S.-ROK alliance and eliminating North Korean nuclear weapons. / Major, United States Air Force

“The Roots of Puritanism in the Korean Presbyterian Church” offers an analysis on Puritanism and an alternative to the contemporary Korean Presbyterian Church, which has lost its course; specifically in the current century of mission in Korea. The reasons for the abovementioned idea are as follows. Firstly, Puritanism was not foreign concept to Korean Christians, who have had contact with the concept before. Early missionaries in America fought against Conservatism (or Fundamentalism) and Liberalism. The conservative camp especially tried to hold on to the Westminster Confession of Faith and the authority of the Bible. These were the representatives of Puritan legacies. Puritanism was naturally implanted into Korean soil through early foreign missionaries who preached the Gospel. Therefore, the suggested idea must take on the character not of a creation but of a restoration in terms of the Korean Presbyterian Church. Secondly, it is due to its confidence that the Puritans pursuing points, which tried to establish the whole society on the basis of the Bible, are the answer to the contemporary Korean Presbyterian Church, which has stagnated in both number and quality of faith. The Puritans did not separate faith from the secular world. Instead, they tried to establish their society on the Bible. The Covenant with the church and the state as well as the individual was a strong vehicle for their thoughts. Their ultimate aim was piety in the presence of God. Meanwhile, the early Korean Presbyterian Church adopted the Twelve Articles of Faith and the Westminster Confession of Faith as official creeds. It meant that the Korean Presbyterian Church kept the Puritan point of the Bible and faith from 1884 to the middle of the 1930’s. The faculty of Pyungyang Theological Seminary, which was a unique training school for would-be ministers, taught the Puritan faith and theology thoroughly. However, Korean political changes tremendously influenced her Christianity. During the period of Japanese Imperialism (1919-1945), the early conservative faith and theology had to face the challenge of Liberalism. The whole of the Korean Presbyterian Church submitted to the Japanese iron-fisted rule and Shrine Worship in 1937. However, the Puritan faith and theology were rediscovered through the faith of the few resistors of Japanese rule. After Liberation from Japan in 1945, the antagonism of ideology caused Korea divided into two. On the one hand, North Korea fell under the banner of communism, which thoroughly eradicated the church in terms of its ideology more than the Japanese did. On the other hand, South Korea joined under the banner of democracy and churches were found to be in an unparalleled prosperous condition. The few resistors of Japanese imperialism cried out for the Puritan faith and demanded that the Korean Church should officially repent the sin of Japanese Shrine worship. However, an overwhelming majority consisting of the ecclesiastical authorities rejected their proposal as well as their faith and treated them as religious outcasts. The few resistors detached themselves from the established denomination and formed the Goshin Party. After the separation, schisms of denomination accelerated, because of differences in faith and theology or religious concession. In addition, Pentecostal theology and its spirituality as a substitute to Puritanism were more dominant in Korean Christianity than any other denominations. The Private experience and the charismata of the Holy Spirit were the keys points of the Pentecostal movement. They contributed to the concern and development of Pneumatology in Korean Christianity. However, Pentecostalism made the Presbyterian Church interpret the Bible without theological balance. The church began to seek material blessings instead of spiritual ones and to the pursuit of this world instead of the next. In addition, the Presbyterian Church was only concerned with itself without being indifferent to the ungodly society beyond itself. In conclusion, the restoration of Puritanism, which tried to base both the society and the church on the foundation of the Bible, is the best solution to the future contemporary Presbyterian Church. / Thesis (PhD (Church History and Church Polity))--University of Pretoria, 2008. / Church History and Church Policy / PhD / unrestricted

The positive psychotherapy focused on for this study is Solution-Focused Brief Therapy (SFBT). Insoo Kim Berg and Yvonne Dolan (2001) once described the essence of Solution-Focused Brief Therapy (SFBT) as the “pragmatics of hope and respect” (p. 1) and despite Berg and Dolan’s declaration of hope’s importance in SFBT, little process research has been published looking at the “pragmatics” of hope in SFBT practice. Hope is seen as a common factor in psychotherapy since the human relationship, also known as the therapeutic alliance, is a foundation of psychotherapy. Hope plays a significant role in every human interaction and it is seen as a common factor in human relationships. To begin to address this gap, a pilot study was conducted of an Insoo Kim Berg training recording, Irreconcilable Differences, in order to explore how she listened, selected and built hope in her work. Based on a SFBT technique focus, the preliminary results suggested Insoo Kim Berg builds hope relationally through the solution-building by working within the clients’ focus and their presenting problem. Four different yet interrelated hope phases in the SFBT solution building process were identified. To address this gap further, based on a SFBT stage focus, three cases by Insoo Kim Berg were analyzed in this study, Irreconcilable Differences, Over the Hump, and I’d Hear Laughter. The goal of this research was to demonstrate the how Berg listened, selected, and built hope with clients to validate her progression within and across the five SFBT solution-building stages, in all three cases through constant comparison, and to show how these findings are congruent with SFBT hopeful tenets. All with the intention of allowing the pragmatics of hope and respect to become more transparent for future SFBT practitioners. Findings suggested building hope appears to be a relational process to building solutions and is co-constructed. Berg demonstrates how she embodies a hopeful stance throughout the duration of therapy. Results show how Berg builds hope within and across her progression of the solution-focused brief therapy solution-building stages, utilizing SFBT techniques and processes, which all align with the foundational SFBT tenets.

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No description available.

This thesis concentrates on literary works written by writers belonging to the resident Korean minority in Japan (zainichi Koreans). Through the use of postcolonial methodology, this work attempts to monitor the development and changes in the complex concept of "identity" in works written between the 1960s and 2010. The thesis is divided into two major parts. The first, theoretical part, explains the birth of the minority, the conflicts that influenced it and the changes it went through during its history. Postcolonial methodology is also explained, with focus put on the parts that are relevant to Japan. The second, practical part of the thesis, shortly explains the history of zainichi literature and then concentrates on five important postwar resident Korean writers - Ri Kaisei, Kin Kakuei, Yi Yang-ji, Kaneshiro Kazuki and Yu Miri. It analyzes between one and four works by each author and attempts to identify changes in the perception of "identity". It also takes into account female characters and the way they are portrayed by the authors and also the language the book is written in, focusing on whether the author chooses to incorporate the Korean language into the text.

This dissertation examines literary representations of the intersection between British imperialism and British and British-modeled public schools. I categorize British writers who have addressed this nexus in their literary works into two groups, idealists and realists, based on their views of British public schools, imperialism, and the effectiveness of the former in sustaining the latter. I present two examples of idealists, Henry Newbolt and the contributors to The Boy's Own Paper, followed by two examples of realists, Rudyard Kipling and E. M. Forster, who have often been viewed as opposites. I then provide an example of a South-Asian diasporic realist, Selvaduari, who builds upon the critiques of British realists by revealing the contemporary offspring of the marriage between British public schools and imperialism. By analyzing works by idealist and realist authors, I demonstrate the importance of public schools and school literature in promoting and sustaining as well as critiquing and condemning imperialism. / text

Erosion et transferts de matières (i.e. matières en suspension-MES, associées avec le carbone et les éléments traces métalliques - ETM) par les fleuves et rivières sont contrôlés par des facteurs naturels (ex. géologie, climat) et peuvent être significativement modifiés par les pressions anthropiques et/ou, le changement climatique. En se basant sur une banque de données de concentrations en MES et de débits, à hautes résolutions temporelles (journalières) sur le long terme (1960-2008) à l’exutoire du bassin versant du Fleuve Rouge (Chine/Vietnam), les taux d’érosion ont été estimés en moyenne à 600 t/km²/an avec des valeurs variant de 160 à 1330 t/km²/an selon les années. Cette large gamme de taux d’érosion est liée fortement aux conditions hydrologiques interannualles, mais aussi à la présence de réservoir de HoaBinh en 1989. En effet, à partir 1989, chaque année, 50% de matières transportées par le Fleuve Rouge sont piégées dans ce réservoir, correspondant à un taux de sédimentation dans le réservoir de 52 à 200 cm/an. La variabilité spatiale des flux de MES du bassin versant du Fleuve Rouge au Vietnam suggère que les MES du Fleuve Rouge viennent principalement de l’érosion en amont du bassin versant (~80%), contrairement à ce que l’on observe pour le flux liquide (~21%). De plus, l’échange des processus érosion-transport-sédimentation dans la partie médiane du bassin versant dépend fortement des conditions hydrologiques ; à l’inverse, une forte sédimentation a été observée à l’entrée du Fleuve Rouge dans le delta, quelle que soit la condition hydrologique. De même, dans la partie vietnamienne du Fleuve Rouge, les facteurs majeurs influant sur le taux d’érosion seraient les maximas d’élévation et la pente moyenne du bassin. Un suivi hebdomadaire à bimestriel en 2008-2009 des paramètres biogéochimiques (carbone et ETM) ont permis de caractériser la qualité des eaux et des particules sur l’ensemble du bassin versant du Fleuve Rouge. Les concentrations en carbone organique (particulaire et dissous) dans les eaux du Fleuve Rouge sont relativement faibles et majoritairement d’origine allochtone. Les concentrations en carbone inorganique dissous (CID) sont très importantes, en faisant le composé majoritaire (60-90%) des eaux du Fleuve Rouge, en relation avec la présence de roches carbonatées dans le bassin versant. En terme de concentrations en ETM, la qualité des eaux et des particules transportées dans le bassin versant du Fleuve Rouge au Vietnam peut être qualifiée de mauvaise dans la partie amont et de médiocre en aval. L’étude de la répartition entre phase dissoute et phase particulaire a montré que l’essentiel des transferts se fait sous forme particulaire pour plupart des ETM (excepté Mo), dû aux forts taux d’érosion mécanique. De plus, l’étude à haute résolution spatiale (40 points) réalisée sur l’ensemble bassin versant du Fleuve Rouge au Vietnam des concentrations en ETM et de leur spéciation (dissous et particulaire) a mis en évidence de fortes anomalies géochimiques dans la partie amont. Enfin, l’identification des signatures géochimiques des particules érodées a révélé des signatures similaires entre les particules de l’amont et de l’aval du Fleuve Rouge, démontrant une contribution quasi-exclusive de la partie chinoise aux flux de matière (80-95% au flux total). / Erosion and transfer of suspended particulate matter (SPM), and associated elements (e.g. carbon, trace metal elements-ETM) by river are attributed to a combination of natural parameters related to geology and climatic influences and affected by human disturbance. Based on an extensive dataset of daily water discharge and SPM concentrations between 1960 and 2008 at the outlet of the Red River system, the annual SPM yield of the Red River is estimated at 600 t/km²/yr (ranged between 160 and 1330 t/km²/yr). This large range of sediment yield is strongly related to the inter-annual hydrological conditions and the operation of the HoaBinh Reservoir in 1989. In fact, the HoaBinh Reservoir reduces annual SPM delivery to the delta by half after 1989, i.e. the mean sedimentation rate of 52-200 cm/yr. The spatial variability of SPM fluxes in the Red River watershed suggests that most SPM were eroded from the upstream catchment located in China (80%), contrasting the water discharge with only 21%. In addition, the complex processes of erosion/sedimentation occurring in the middle Red River basin strongly depend on hydrological conditions; in contrast, an important sedimentation was observed at the entry point to the Red River Delta whatever the hydrological conditions. The major factors controlling the spatial variation of the sediment yields of the Vietnamese Red River watershed are maximum elevation and mean surface.During 2008-2009, high resolution sampling (weekly to bimestrial) of biogeochemical parameters (carbon and ETM) were performed at five key sites along the Red River system. The organic carbon (particulate and dissolved) concentrations in the Red River are relatively low and mainly allochtonous; in contrast, the dissolved inorganic carbon are very important and is the major carbon form (60 -90%) in relation to the abundance of carbonate rocks in the Red River watershed. In terms of ETM concentrations, the quality of water and SPM transported in the Vietnamese Red River watershed can be classified as poor upstream and as mediocre downstream. The study of the partition between the dissolved and particulate phases showed that most ETM transported in the Red River are in particulate phase (except Mo), due to the high mechanical erosion rate. In addition, high spatial resolution study (40 sites) performed in the Vietnamese Red River watershed of ETM concentrations and their speciation (dissolved and particulate) has highlighted strong geochemical anomalies in the upstream Red River. Finally, the identification of geochemical signals showed a similarity in the geochemical signal of particulate metal transport between upstream and downstream of the Red River, suggesting a contribution quasi-exclusively from the upstream part (in China) in the ETM fluxes of the Red River (80 -95%). / Quá trình xói mòn và vận chuyển vật chất (chất rắn lơ lửng, các-bon và kim loại nặng) bởi các dòng sông, suối chịu ảnh hưởng tổng hợp từ các quá trình tự nhiên (địa chất, khí hậu) và các hoạt động của con người. Dựa trên các bảng số liệu ngày về hàm lượng chất rắn lơ lửng và lưu lượng nước trong giai đoạn từ năm 1960 đến năm 2008 trên trục chính của sông Hồng tại trạm Sơn Tây (hạ nguồn của hệ thông sông Hồng trước khi chảy vào vùng đồng bằng), mục tiêu đầu tiên của luận án là nghiên cứu sự biến đổi theo thời gian tải lượng trung bình chất rắn lơ lửng của sông Hồng. Các kết quả cho thấy trong giai đoạn quan trắc, hàng năm sông Hồng chuyển tải ra biển khoảng 24×106 đến 200×106 tấn/năm (trung bình các năm là 90×106 tấn /năm), tương đương với hệ số xâm thực từ 160 đến 1330 tấn/km²/năm. Chính sự phụ thuộc mạnh mẽ của hàm lượng chất rắn lơ lửng vào các điều kiện thuỷ văn khác nhau đã tạo ra sự đa dạng về tải lượng chất rắn chuyển tải hàng năm của hệ thống sông Hồng. Tuy nhiên, trong những năm 1989-1990, khi hồ chứa Hoà Bình đi vào hoạt động, tải lượng chất rắn lơ lửng chuyển tải ra biển của hệ thống sông Hồng đã giảm sút còn khoảng 50×106 tấn, tức là đã giảm khoảng 50%. Dựa trên chiều cao và thể tích của hồ Hoà Bình, hệ số lắng đọng chất rắn lơ lửng trong lòng hồ được xác định vào khoảng 52-200 cm/năm. Như vậy, sau 20 năm đi vào hoạt động, độ dầy lớp bùn đất lắng đọng trong hồ Hoà Bình khoảng 10.4-40m, làm giảm đáng kể thể tích của hồ Hoà Bình.Mục tiêu tiếp theo của luận án là thiết lập cân bằng hàm lượng chất rắn lơ lửng trong các đoạn sông từ thượng nguồn sông Hồng (trạm Lào Cai), tại các hạ nguồn của 3 nhánh sông chính (sông Hồng tại Phú Thọ, sông Đà và sông Lô tại Việt Trì) và tại Sơn Tây trong thời kỳ 2003-2008. Diễn biến của các quá trình xói mòn, chuyển tải và lắng đọng diễn ra trên các đoạn sông một cách phức tạp, đan xen lẫn nhau và phụ thuộc chặt chẽ vào các điều kiện thuỷ văn. Tuy vậy, hiện tượng lắng đọng mạnh mẽ các chất rắn lơ lửng trong vùng hạ nguồn của hệ thống sông Hồng (từ Phú Thọ đến Sơn Tây) đã được ghi nhận trong tất cả các năm quan trắc, không phụ thuộc vào điều kiện thuỷ văn. Ngoài ra, dựa vào các số liệu thu thập được, chúng tôi đã lập bản đồ xói mòn cho toàn bộ lưu vực sông Hồng tại Việt Nam. Hơn thế, các kết quả còn chỉ ra rằng độ cao và độ dốc trung bình lưu vực là hai yếu tố chính ảnh hưởng đến hệ số xâm thực của lưu vực sông Hồng.Đánh giá chất lượng nước và chất lượng chất rắn lơ lửng chuyển tải trong hệ thống sông Hồng là mục tiêu thứ 3 của luận án. Để đạt được mục tiêu trên, chúng tôi đã tiến hành lấy các mẫu nước và chất rắn lơ lủng trên trục chính cũng như trên các nhánh sông chính của sông Hồng để phân tích hàm lượng các-bon hữu cơ và vô cơ cũng như hàm lượng kim loại nặng trong hai năm 2008-2009, với chu kì lấy mẫu hàng tuần đến hàng tháng. Hàm lượng các-bon hữu cơ (dạng hoà tan và lơ lửng) trong nước sông Hồng tương đối thấp tại tất cả các điểm lấy mẫu và nguồn gốc chính của các-bon hữu cơ là allochtone. Ngược lại, hàm lượng các-bon vô cơ hoà tan rất cao, chiếm khoảng 60-90% hàm lượng các-bon tổng và được giải thích bằng sự có mặt phong phú của núi đá vôi trên toàn lưu vực. Đối với kim loại nặng, dựa trên các kết quả phân tích về hàm lượng kim loại nặng trong nước và trong chất rắn lơ lửng và các tiêu chuẩn đánh giá chất lượng nước QCVN 08, chúng tôi đã đánh giá chất lượng nước cho toàn bộ hệ thống sông Hồng từ Lào Cai đến Sơn Tây. Nếu nước sông Hồng trên vùng thượng nguồn (tại Lào Cai và Phú Thọ) không đảm bảo chất lượng để có thể sử dụng làm nguồn nước sinh hoạt thì tại các vùng hạ lưu của sông Hồng, sông Đà và sông Lô, nhìn chung nước của 3 nhánh sông có thể dùng để cung cấp nước sinh hoạt nhưng phải qua các quá trình xử lí tách cặn lơ lửng. Hơn nữa, trong năm 2008, chúng tôi đã thực hiện hai chương trình lấy mẫu nước, chất rắn lơ lửng và trầm tích trên 40 điểm phân bố đều trên toàn bộ lưu vực sông Hồng tại Việt Nam trong mùa cạn và mùa mưa.

本文探討1940年代地方文學書寫，藉由台灣與朝鮮對照呈現當時地方書寫產生的特殊背景：不同立場對地方書寫的期待、作家1940年代書寫時如何表現。藉上述的角度，試圖呈現殖民地地方書寫的意義。 殖民地文學中，捕捉在地特色、獨有風物的題材向來備受關注。1940年代更受日本帝國面臨發展困境，走向動員戰爭之路策略影響。使得文藝因應總力戰策動各層面投入戰爭，而背負增進帝國認同的任務。「新體制」與「大政翼贊會」的推行與成立，顯示當時精神統制擴大、也反映東亞協同、對抗西方文明的框架，將殖民地作為帝國外緣／前線的策略。地方特色的突顯與應用即受到這些政策與思維籠罩。 此時，殖民地文藝創作環境面對權力集中一元化，不僅創作語言受限、言論出版高壓管制；官方更積極介入文藝團體、舉辦獎項，加強國策宣傳。文藝創作空間、資源侷限下，新體制與大政翼贊會為殖民地文化界帶來發揮的機會。在地方書寫蘊含國民認同基礎、傳統根源等元素，既呼應政策對於國民文化，殖民地文化人亦可爭取活動機會。這一類書寫，最初以地方色、鄉土色展現地方特殊性的書寫為普遍認同，後隨戰爭國策要求提高，強調服膺日本精神、支援戰爭的內容。 殖民地這一波的地方書寫當中，題材、作品氛圍、敘事型態皆與以往略有不同。題材上，應和國策創作增加、探索傳統價值與批判西方、塑造道德模範反省文化的進程。作品氛圍與敘事型態上，揮去不見希望的氛圍，轉為明朗、健康、動人，更以人物或藉由回歸自然、致力生產、甚至參與戰爭找到生命的意義與希望。 本文即選取兩組作家作品為代表。呂赫若、俞鎮午運用風俗習慣、傳統禮節，表現殖民地特殊風貌，並以倫理、全體性角度肯定傳統價值。張文環、金史良以鄉土為基底，在堅毅樸實的生活中獲得力量。他們在地方書寫框架中，迴避國策密切相關的題材，書寫熟悉事物表現地方特殊性，運用風俗習慣、神話傳說、禮儀、信仰等表現殖民地的人文風景，並一改先前啟蒙的批判角度。這些書寫策略具有保存殖民地文化甚而是民族精神的可能，卻也在時空限制下與戰爭動員的政策意識有所呼應。在兩地的同中有異的書寫成果裡，也見證地方書寫的政治策略、多種意涵，在殖民地的空間裡延伸出更多迂迴與曖昧。 / This article tries to analyze local literature in Taiwan and Chosen, Japan’s colonies in 1940’s. First of all, by analyzing the form of mobilization under the Total War System in 1940, it shows the influence on Japan’s military operation and manipulation. On one hand, the authority made use of centralized management on politics; on the other hand, ideas such as Overcoming Modernity and East Asia Alliance Leader were offered to let people acknowledge the war and sacrifice for it. Through these concepts, the authority reached to the notion which based on the native for people to possess. Secondly, after the foundation of Konoe shintaisei(新體制) and Taisei Yokusankai(大政翼贊會), literature was asked to proclaim the war more strategically. At that time, under the limitation of the amount of paper, local literature in colonies was requested to write in Japanese and scrutinized by the government. In addition, the authority even established literature and art organizations and set up literary prizes to advertise the war. In this way, local literature not only answered the policy but also gave the chance of displaying colonial features to those authors. In the beginning, both the authority and most of the writers accepted the method of using local color to exhibit the colony, however, this method was applied to announce the Japanese spirit and support the war little by little. Under this circumstance, colonies changed the way of literary expression. There were more subjects which conformed the national policy, explored the value of tradition, and criticized the Western to reflect the advancement of culture and then create moral standards. It was the atmosphere of the literature that turned to be bright and cheerful. Moreover, narrative patterns were performed on the characters, such as returning to nature, devoting to production, finding meanings and hopes by participating in the war. This article represents local literature in colonies in 1940 by taking examples of two groups of writers. One of the groups ,which is represented by Lü He-ruo (呂赫若) and You Jin-Oh (유진오), utilized traditional customs and manners as distinguishing features in colony. Furthermore, from the viewpoint of ethic and totalitarianism, they tried to approve the value of tradition. Yet, on the other hand, Chang wen-Huan(張文環) and Kim Saryan(김사량) gained power from difficulty and arduousness in life through the background of rural places. Both of them avoided responding to the national policy in this kind of writing pattern. As previously stated, these writers portrayed what they were familiar with to show the feature in local places. Ranging from customs, practices, folklore, manners to religions were what the writers employed to illustrate the cultural characteristics in colonies. Besides, the viewpoint changed from the criticism of enlightenment. These kinds of writing devices with the hope of preserving local culture and even national integrity. However, it was the restriction on politics and the times made literary works echo with the authority’s ideology at the same time. In the view of Compare Taiwan with Chosen, difference in literary works were testified to show the various meanings from colonial strategies in politics and writers characters in the meantime.

二次世界大戰時，美國擊敗日本，使朝鮮半島脫離殖民統治，然而隨後的美蘇冷戰，使得朝鮮半島分裂成南北兩韓，而美國與南韓簽訂條約，成立美韓同盟(U.S.–South Korea Alliance)，成為繼日本之後，美國在亞洲的另一個戰略同盟。冷戰與後冷戰期間，美韓關係雖有波折，但不影響美韓同盟的強度。直到2000年美國小布希就任，其強硬的北韓政策與南韓金大中的陽光政策形成對比，成了美韓關係不協調的開端。而後連任的小布希延續其北韓政策，南韓繼任的盧武鉉將陽光政策擴大實施，推出和平繁榮政策，美韓兩國的北韓政策再度不同調，兩國關係持續跌宕起伏至2008年。本研究試圖以攻勢現實主義分析美國此時期的北韓政策；以新自由制度主義檢視南韓的交往政策，透過理論交鋒研究兩國利益的差異，並檢視外部因素如中國、日本、俄羅斯的影響，進而解釋此時期美韓關係不協調的原因。 / In 1945, the U.S. defeated Japan. The Korean peninsula was liberated from Japanese colonization at the end of World War II. However, the confrontation between the U.S. and the Soviet Union left two Koreas separated by the Demilitarized Zone from the Cold War to the present. In addition, based on the Mutual Defense Treaty Between the United States of America and the Republic of Korea, the U.S.–South Korea Alliance was established. During the Cold War and Post Cold War era, the U.S.-South Korea relations faced hard times, but the alliance remained strong. When George W. Bush became the president of the U.S. in the year 2000, his hardline policy toward North Korea collided with South Korea’s Sunshine Policy, which was made by the president Kim Dae-jung. These different policies toward the North caused tensions to the U.S.-South Korea relations. Then the re-elected Bush continued hardline policy against North Korea, but South Korea’s new president—Roh Moo-hyun—decided to inherit the sunshine policy and develop Peace and Prosperity Policy. Washington and Seoul still failed to reach a consensus on how to deal with Pyongyang. The U.S.-South Korea relations continued to fluctuate until 2008. This study tries to analyze the U.S. policy toward North Korea through offensive realism and examine South Korean engagement policy through neoliberal institutionalism from 2000 to 2008. Besides, this thesis also considers exogenous factors such as China, Japan, and Russia, trying to explain the inconstancy of the U.S.-South Korea relations.