 These experiences and subsequent differences in nationalistic politicisation would have profound impacts on the course of the Indonesian Revolution in the years immediately following independence (1945–1950).To gain support and mobilise Indonesian people in their war effort against the Western Allied force, Japanese occupation forces encouraged Indonesian nationalistic movements and recruited Indonesian nationalist leaders; Sukarno, Hatta, Ki Hajar Dewantara and Kyai Haji Mas Mansyur to rally the people's support for mobilisation centre "Putera" () on 16 April 1943, replaced with "Jawa Hokokai" on 1 March 1944.Some of these mobilised populations were sent to forced labour as romusha.