Nigeria participates in the African Union, the Economic Community of West African States (ECOWAS), the Non-Aligned Movement, the Commonwealth of Nations, and the United Nations in order to carry out these values. There are no citations in this section. Please contribute to the improvement of this section by including citations to credible sources. Nigeria is a member of the African Union (AU), the biggest regional organization in Africa. In addition to other duties, the AU promotes peace, security, and human rights on the continent. The current president of Nigeria is Muhammadu Buhari, who was elected in 2015. He is from the All Progressives Congress (APC). The incumbent vice president is Kemi Adeosun, who was elected in 2019. She is from the Peoples' Democratic Party (PDP). Nigeria is part of the Economic Community of West African States (ECOWAS), which has its headquarters in Lome, Togo. The main purpose of ECOWAS is to develop trade among its members. However, unlike the AU, which is focused on politics, ECOWAS works more on economics. Countries like Ghana, Mali, and Niger have much influence at ECOWAS meetings because they are large countries with strong economies. Nigeria is one of the most influential nations at ECOWAS meetings because it has one of the largest economies in Africa.