The Japanese maintained logistics in the Aleutian Islands for 3 years EXPLAIN THAT?
A small Japanese force occupied the islands of Attu and Kiska, but the remoteness of the islands and the difficulties of weather and terrain meant that it took nearly a year for a far larger U.S./Canadian force to eject them.
A battle to reclaim Attu was launched on May 11, 1943 and completed following a final Japanese banzai charge on May 29th. On 15 August 1943, an invasion force landed on Kiska in the wake of a sustained three-week barrage, only to discover the Japanese had abandoned the island on July 29th.
The Japanese occupied the islands beginning on 3 June 1942. They were pushed out in August 1943 How do you GET to three years?
Do you realize how close Attu and Kiska are to Japan? It is no great feat for Japan to support a small contingent on these remote islands. It is only 2,571 miles from Japan. After the battle of the Komandorski Islands, the Japanese could only supply the small garrison using submarines. Occupying two remote islands in the Pacific is a far cry from invading Hawaii or the US mainland.
