On 14 July 1962, Wachuku was decorated with the insignia of the Commander of the Order of the Niger Republic, in recognition of "services to the People of the Republic of Niger" by President Hamani Diori. As Foreign Affairs Minister, Wachuku organised the Afro/Asian group of States and worked to get Liberia voted into the United Nations Security Council, and Ethiopia into the UN Economic and Social Council. He also worked towards the amendment of the United Nations Charter – increasing the Security Council from eleven to fifteen – taking into account African nations.