In February 1941 , the Chiefs of Staff decided to reinforce the garrison by sending the rest of the 49th Infantry Battalion , a Militia unit .
In February 1941 , the Chiefs of Staff specially enlisted for service in the tropics .
In February 1941 , the Chiefs of Staff decided to reinforce the garrison by sending the rest of the 49th Infantry Battalion , a Militia unit , but specially enlisted for service in the tropics .