Following the capture of Timor by the Japanese in February 1942, and despite initial appearances that all Allied soldiers were captured or killed, it became evident that the &lt;a href="2/2nd%20Commando%20Squadron%20%28Australia%29"&gt;2/2nd Independent Company&lt;/a&gt;, supported by other surviving Australian and Dutch troops, were mounting a guerrilla campaign against the Japanese. Throughout late 1942, a haphazard supply service began, and "Voyager" became involved when a sizable troop landing (400 commandos from &lt;a href="2/4th%20Commando%20Squadron%20%28Australia%29"&gt;2/4th Independent Company&lt;/a&gt;) and evacuation (the 2/2nd, plus any Portuguese women and children) was planned for September 1942: the need for a large capacity, speed, and surprise requiring the use of a destroyer.