Aleutian Islands Campaign - Wikipedia

Today in American Military History -- 1942 A little-known WWII campaign...
Aleutians Campaign: Japanese troops land on Attu.

The Japanese invasions and occupations of Kiska on June 6 and Attu on June 7 shocked the American public, as American soil was under foreign hands the first time since the War of 1812. The invading forces initially met little resistance from the local Unangax, also known as Aleuts. Though the U.S. Navy had offered to evacuate Attu in May 1942, the Attuan Unangax chief declined. Little changed for the Unangax under Japanese occupation until September 1942 when Japan's Aleutian strategy shifted. It was at this point that the Unangax were taken to Hokkaido, Japan and placed in an internment camp.