In part due to his advanced years, Kenyatta rarely traveled outside of Eastern Africa. Under Kenyatta, Kenya was largely uninvolved in the affairs of other states, including those in the East African Community. Despite his reservations about any immediate East African Federation, in June 1967 Kenyatta signed the Treaty for East African Co-operation. In December he attended a meeting with Tanzanian and Ugandan representatives to form the East African Economic Community, reflecting Kenyatta's cautious approach toward regional integration. He also took on a mediating role during the Congo Crisis, heading the Organisation of African Unity's Conciliation Commission on the Congo.