This was accomplished just before the majority of the Thirty Comrades returned with the invading Japanese Army initially through Southern Burma in December 1941.
In April 1941, small groups of Burmese youth left Burma secretly to obtain military training to fight the British colonists in the struggle for independence.
Their leader was Thakin Aung San and they were sent by the Dobama Asiayone ("We Burmans Association") with the intention to get assistance from Guangzhou.
[4][5] A Japanese officer called Suzuki Keiji, better known among the Burmese by his nom de guerre Bo Mogyo (Commander Thunderbolt) and head of a special intelligence unit called Minami Kikan (南機関) formed in order to support a national uprising in Burma, was the mentor and principal trainer of the Thirty Comrades.
[2] Dr Ba Maw who was the Head of State and "Supreme Leader' (in Burmese Adipadi Gyi) from August 1943 to about March 1945, during the administration established by the Japanese, had somewhat different opinions on the role of the Thirty Comrades.