Diploma thesis Conflict Resolution in International Relations: The Case Study of Northern Ireland Conflict examines development of the conflict and peace process between the years of 1980 and 2007. A complex concept of conflict analysis by Peter Wallensteen is applied to the case of Northern Ireland. Using the method of process tracing allows for a detailed understanding of the transformation of conflict dynamics from negative to positive. Such a transformation results from behavior and attitudes of individual actors who act positively and in a constructive way. The following actors were identified as the main parties to the conflict: IRA, Northern Ireland political parties - mostly the UUP, DUP, SDLP, and SF - governments of the United Kingdom and the Republic of Ireland. Development of their attitudes and interests is examined with respect to five distinct categories: involvement of independent authorities and/or third parties; ideology and understanding of the main goals; economic conditions; cultural aspects; and the matter of decommissioning. The Northern Ireland case illustrates that the change of behavior eventually led to the transformation of the conflict and its resolution. However, it also illustrates how painfully slow process it was.

L’Irish Republican Army (IRA), le principal groupe paramilitaire républicain, fut fondé en 1969. Dès lors, il lutta contre la présence britannique en Irlande du Nord et pour la réunification de l’île d’Irlande. Le désarmement de l’IRA, considéré comme irréalisable jusqu’en 2001, s’accomplit pourtant bel et bien entre 2001 et 2005 dans le cadre du processus de paix. Le 26 septembre 2005, l’IRA avait officiellement déposé les armes. Quels mécanismes avaient alors permis, au sein du processus de paix nord-irlandais, d’aboutir à la "mise hors d’état de nuire" de l’arsenal de l’IRA qui déclarait pourtant encore en 1998 qu’il n’accepterait pas de rendre les armes ? Comme l’annonce le titre de cette thèse, trois questions sous-tendent notre analyse : quels étaient les enjeux de l’abandon de la violence et du désarmement pour l’IRA et le Sinn Féin durant tout le processus de paix ? Quelle était la portée symbolique du désarmement pour le groupe armé clandestin et pour le mouvement républicain dans son ensemble ? Enfin, quels mécanismes, tant diplomatiques que psychologiques, avaient pu convaincre l’IRA d’abandonner la violence puis de désarmer ? À la demande du groupe clandestin, la nature du dispositif de désarmement et le nombre d’armes détruites demeurent confidentiels. Cette étude ne prétend donc pas révéler des secrets d’État, mais bien de mettre en évidence la dynamique du processus qui a mené l’IRA de la violence armée à l’abandon des armes. / The Irish Republican Army (IRA), the main Republican paramilitary group in Northern Ireland was founded in 1969. From then on it fought to put an end to the British presence in Northern Ireland and to achieve the unification of Ireland. The decommissioning of the IRA, which seemed unrealizable until 2001, was indeed accomplished between 2001 and 2005, as part of the Peace Process. On 26 September 2005, the IRA officially laid down its weapons. What mechanisms played a role in the IRA putting its arsenal beyond use during the Northern Ireland Peace Process, despite the armed group’s declaration in 1998 that there would be no disarmament? As mentioned in the title of this thesis, three questions underlie our analysis: What was at stake in the giving up of violence and in decommissioning for the IRA and Sinn Féin during the Peace Process? What was the symbolic significance of decommissioning for the IRA and for the whole Republican movement? Finally, what diplomatic and psychological mechanisms managed to convince the IRA to give up violence and then to disarm? At the clandestine group’s own request, the technical aspects of decommissioning and the number of arms which were destroyed still remain confidential. Therefore, this study does not reveal any State secrets, but rather underlines the dynamics of the process which led the IRA from armed violence to the giving up of arms.