The role of the Bundeswehr is described in the Constitution of Germany (Art. 87a) as absolutely defensive only. Its only active role before 1990 was the Katastropheneinsatz (disaster control). Within the Bundeswehr, it helped after natural disasters both in Germany and abroad. After 1990, the international situation changed from East-West confrontation to one of general uncertainty and instability. Today, after a ruling of the Federal Constitutional Court in 1994 the term "defense" has been defined to not only include protection of the borders of Germany, but also crisis reaction and conflict prevention, or more broadly as guarding the security of Germany anywhere in the world. According to the definition given by former Defense Minister Struck, it may be necessary to defend Germany even at the Hindu Kush. This requires the Bundeswehr to take part in operations outside of the borders of Germany, as part of NATO or the European Union and mandated by the UN.

Since the early 1990s the Bundeswehr has become more and more engaged in international operations in and around the former Yugoslavia, and also in other parts of the world like Cambodia or Somalia. After the September 11, 2001 attacks, German forces were employed in most related theaters except Iraq.

The actual number of troops serving in an abroad deployment complies with the requirements of the current security situation. In addition to the numbers above, forty soldiers are on permanent stand-by for medical evacuation operations around the world in assistance of ongoing German or coalition operations (STRATAIRMEDEVAC).

In support of Allied stabilization efforts in Iraq, the Bundeswehr is also training the new Iraqi forces in locations outside Iraq, such as the United Arab Emirates and Germany. Since 1994, the Bundeswehr has lost about seventy troops in abroad deployments.