In 1964, Congolese Prime Minister Moïse Tshombe, his employer in Katanga, hired Hoare to command a military unit named 5 Commando, Armée Nationale Congolaise 5 Commando (later commanded by John Peters; not to be confused with No.5 Commando, the British Second World War commando force) composed of about 300 men, most of whom were from South Africa.