The Invasion of Canada by Nazis in 1943
An armed German Unterseeboot landed on Canadian soil to install a weather station back in WWII. You didn't know? That's alright, neither did anyone else until 1981 when some historians, acting on information from diaries and photographs, were able to locate an old weather station on the coast of Labrador (60.4N 64.23W if you want to go there in Google Earth). U-537 made the excursion on October 22, 1943 to install the station.
You can read more about it here.
And don't worry- I have a retaliatory mission planned- I'm going to crew the Jaguar Shark with water bears, and send them over to Germany so they can poo in the black Forest.

The Voyage of the Jaguar Shark
I built a submarine today- I named it the Jaguar Shark in honor of Owen Wilson making a speedy recovery.


You can make one too- here's how.

I took it down to the nearby pond- I didn't really christen it since I figured breaking a bottle over the bow of a bottle probably wouldn't work that well. Anyways, the maiden voyage was not quite what I hoped for- it didn't exactly submerge, even though I played with its buoyancy a bit by adding varying amounts of water.




And actually the propeller system, though brilliant, didn't work as well as I had hoped. Oh well, it was still fun.
Thanks to Craig at Deep Sea News for the link.