ONUC
In 1960, the leader of the CONAKAT party Moïse Tshombe, declared Katanga Province's secession from Congo-Léopoldville as the State of Katanga after unrest elsewhere in the Congo and the failure to establish a federalist regime in the country. The newly formed Katangese government requested military aid from Belgium while the Congolese state appealed for assistance to the United Nations. On 17 July 1960 United Nations Security Council Resolution 143 was adopted, which established the United Nations Operation in the Congo (ONUC) and would provide military assistance to the Congolese forces.