IntroductionTen years ago, the German government decided to get involved in the "war on terrorism" and its Operation Enduring Freedom (OEF) and to intervene in Afghanistan in within the framework of the International Security Assistance Force. (FIAS). This decision is based on United Nations Security Council resolutions 1368, 1378, 1383 and 1386 of November and December 2001. These resolutions legitimized the general conditions of the intervention from the point of view of international law. Therefore, Germany's participation in the war in terms of a reciprocal collective security system also refers to Article 24 of the German Basic Law (2006, p. 22). But why did the German government vote in favor of deploying military forces in Afghanistan? The initiative for the intervention came from the United States in reaction to the terrorist attacks of September 2001 to guarantee the status of hegemonic power (Buro, 2009, p. 10). But civil war and terrorist networks are not at all a new phenomenon in Afghanistan. The German motivations behind the decision to be part of the OEF and ISAF constitute the main research topics of this article. Furthermore, it intends to analyze the decision-making process regarding Germany's participation in the war according to the methodological approach of "bureaucratic politics", explained by Graham Allison (2008). To ensure a solid understanding of this complex process, this article will analyze the three models of Allison's approach. This seems necessary due to the German political system, in which organizations as well as individuals are closely linked as essential elements of politics and therefore influential actors in the government decision-making process. In this context, many advantages for Germany after the war and the establishment of a liberal economic system, Western democratic values ​​and institutions. This would be the best way to promote peace and contribute to prosperity – for Afghanistan and for the entire world. Furthermore, neoliberalism assumes that democracies will not fight each other. The German government supports these goals as well as a "state-building process" in its "Afghan Concept", which defines the interdependence of security, development and reconstruction (2007, p. 15-30) . The actors that neoliberalism attributes to international politics, such as human rights, environmental issues as well as threats from terrorist organizations and networks, create an explanatory power of the global system that the theoretical approach completely lacks. neo-realism..