The Japanese No. 3 Special Landing Party and 500 Marines went ashore at Kiska, on June 6, 1942, as a diversionary part of the Japanese plan for the Battle of Midway. The Japanese captured the sole inhabitants of the island —a small American Naval Weather Detachment consisting of ten men, including a Lieutenant along with their dog. One member of the detachment escaped for 50 days. Starving, thin, and extremely cold, he finally surrendered to the Japanese. The next day Attu Island was captured by the Japanese.
On August 17, 1943, an invasion force consisting of 34,426 Allied troops, 5,300 of whom were Canadian, 95 ships (including three battleships and a heavy cruiser), and an assigned air strength of 168 aircraft arrived at and landed on Kiska...To find the island completely abandoned. It turned out that the Japanese, well aware of the loss of Attu and the impending arrival of the larger American force, had successfully removed their troops on July 28, 1943 without the Americans or, and more importantly, their bombers noticing.
source:
http://en.wikipedia.org/wiki/Kiska