Secret Intelligence Australia (SIA) was a British World War II intelligence unit commanded by Captain Roy Kendall who reported directly to MI6 in London. SIA was known as Section B of the Allied Intelligence Bureau but was not accountable in any way to the Australians or the Americans. SIA had two main functions: 1. Gather information on the enemy and his activities through special means and channels concerning which detailed secret instructions would be issued from time to time. 2. Specifically charged with obtaining information from the Netherlands East Indies through Islamic channels.