Describe the function of the African Union (AU).

The African Union (AU) primarily functions to promote unity and cooperation among African states. Established in 2001 and launched in 2002, the AU was created to enhance political and economic integration across the continent, as well as to address various social and economic challenges faced by African nations. The organization serves as a platform for dialogue and collaboration, facilitating cooperation in areas such as trade, development, security, and human rights. The AU also aims to foster a sense of continental identity and solidarity, with initiatives that seek to resolve conflicts and encourage peaceful coexistence among member states.

The other options do not align with the core objectives of the AU. For instance, while the AU may play a role in upholding certain principles of international law within its scope, it does not have the authority or mechanism to enforce international law globally. The organization does not conduct military operations as its primary function; rather, it may endorse peacekeeping missions in partnership with other entities when necessary. Lastly, limiting economic relations is contrary to the AU's goal of enhancing cooperation and integration, as it actively works to improve economic ties and promote intra-African trade.