Approved for public release, distribution is unlimited / After the terrorist attacks of September 11, 2001, the U.S. Coast Guard shifted much of its effort toward Maritime Homeland Security activities. In response to this major shift in mission priorities, the Coast Guard is merging its Operational and Marine Safety field units into Sector commands. This reorganization is designed to ensure unity of effort, allow more efficient use of resources, improve training of Coast Guard members, and ensure better customer service. This thesis shows that further reorganization will be necessary at the operational and strategic levels of the Coast Guard. The organization-wide changes recommended by the author will allow the Coast Guard to align with the new Sector field commands, better align with the other agencies within the Department of Homeland Security, and ensure the critical tenets of unity of command, unity of direction, and unity of accountability are realized. Research data gathered for this project included surveys, personal interviews, and a use-case. The author also conducted a detailed review of documents produced at a Coast Guard Reorganization Summit, other internal Coast Guard documents, and the published literature. Based on the results of this study, the author offers 10 recommendations for the leaders of the post-9/11 Coast Guard. / Lieutenant Commander, United States Coast Guard

La Thaïlande est un État unitaire et depuis 1892 son administration déconcentrée est assurée par la présence de gouverneurs provinciaux. Or, malgré de nombreuses attributions législatives, l'exercice des fonctions du chef de la province se heurte à plusieurs obstacles dans la pratique. A titre d'exemple, l'unité de commandement du gouverneur provincial était souvent contestée, les pouvoirs qui lui ont été délégués par les autorités centrales étaient inappropriés tant à sa fonction qu'à ses responsabilités. Ceci était une source de lenteur de l'administration provinciale dans son ensemble. Puis, comme la province ne pouvait pas bénéficier directement du budget provenant de l'État car la demande de budget provincial était effectuée au nom de la Direction, les projets réalisés sur place ne convenaient donc pas aux besoins des habitants locaux. Enfin, l'absence de coopération entre les fonctionnaires des différents organes dans la province contribuait alors aux chevauchements des travaux de ces organes et causait par la suite une perte de temps et d'argent pour l'État. Ainsi, lors de la réforme en 2001, le gouvernement de l'époque a introduit au niveau provincial le concept du gouverneur « CEO » et la méthode de la gestion d'intégration (MGI). Le chef de la province endosse alors le rôle du Chief Executive Officer (CEO), de ce fait ses pouvoirs ont été renforcés afin qu'il puisse prendre une décision rapide et efficace en réponse aux problèmes survenus dans sa province à l'instar des CEO dans leurs entreprises. Quant à la province, elle applique la MGI qui est une nouvelle façon de travailler visant à rendre de meilleurs services rendus à la population. / Thailand is a unitary state and since 1892 its deconcentrated administration is ensured by the presence of provincial governors. However, despite numerous attributions recognized by the laws, the provincial governor faces several obstacles in practice. For example, his Unity of Command was often challenged, the powers delegated to him by the central authorities were not only inappropriate to his function but also to his responsibilities. This was actually a source of slowness in provincial administration. Then, because the province could not directly benefit the budget from the State, as the process of demand for provincial budget was conducted on behalf of the Department, the projects that were carried out did not necessarily match up with local's need. Finally, the lack of cooperation between officials of different organs who work in the province contributed to an overlap of works and caused thereafter a waste of time and money to the State. Therefore, during the reform in 2001, the then government introduced the concept of "CEO" provincial governor and the system of "Province's Integrated Management - PIM". The provincial governor endorses hereupon the role of Chief Executive Officer (CEO), for this reason, his powers have been reinforced so that he can make a fast and effective decision in response to problems occurring in his province like the CEOs to their companies. As for the province, the system of PIM is applied and it is a new way of working which aims to provide a better service for the population.

The purpose of this thesis is to illustrate the importance of the military principle of unity of command by examining the military history of a Union army unit during the Civil War. The Mississippi Marine Brigade and its predecessor, the Ellet Ram Fleet, being a creation of the War Department, and yet conducting tactical operations within the scope of the Navy Department, vividly illustrates the problems inherent in joint army-navy operations. The brigade's primary mission was to counter guerrilla warfare in the Mississippi River valley. The text describes the organization, administration, and major operations of the brigade as a mobile, independent, private military force.