I was watching this show called Cities of the Underground on the History channel last night. These 2 guys from WWII were ordered to keep a very large secret up until very recently. There were these underground tunnels that have been around since Australia was a brand new country. Well during the war, Australias military stored tens of thousands of barrels of mustard gas in these tunnels. America and Australia were working together on keeping this a big secret from the Japanese, this and a harbor near Sydney, that repaired damaged American battleships. Japan found out about this harbor and wanted it, but ofcourse they never got to it, they were stopped. If Japan got ahold of that harbor the war could have taken a big turn.
Thanks Aussie land!