The highest organ of the Organization of African Unity (OAU) is the

The highest organ of the Organization of African Unity (OAU) is the Assembly of Heads of State. The assembly is composed of all the heads of state or government of member states of the OAU. It meets once a year to discuss and make decisions on matters of common interest to the continent, such as peace and security, economic development, and regional integration. The assembly is responsible for setting the overall policy direction and priorities of the organization.