When the reigning king Monivong died on 23 April 1941 the Governor-General of French Indochina, Jean Decoux, chose Sihanouk to succeed him. Sihanouk's appointment as king was formalised the following day by the Cambodian Crown Council, and his coronation ceremony took place on 3 May 1941. During the Japanese occupation of Cambodia, he dedicated most of his time to sports, filming, and the occasional tour to the countryside. In March 1945 the Japanese military, which had occupied Cambodia since August 1941, dissolved the nominal French colonial administration. Under pressure from the Japanese, Sihanouk proclaimed Cambodia's independence and assumed the position of prime minister while serving as king at the same time.