Those tanks look to be in a serious state of decay. I wonder if they ever removed all the oil from them?

On May 11, 1943, the operation to recapture Attu began. A shortage of landing craft, unsuitable beaches, and equipment that failed to operate in the appalling weather caused great difficulties in projecting any force against the Japanese. Many soldiers suffered from frostbite because essential supplies could not be landed, or having been landed, could not be moved to where they were needed, because vehicles would not work on the tundra. The Japanese defenders under Colonel Yamasaki did not contest the landings but rather dug in on high ground away from the shore. This caused bloody fighting: there were 3,929 U.S. casualties: 549 were killed, 1148 were injured, 1200 had severe cold injuries, 614 succumbed to disease, and 318 died of miscellaneous causes, largely Japanese booby traps and friendly fire. The Japanese were defeated in massacre valley with a backfire led by Sergeant Morgan Sinclair. The death count for the Japanese was 2035. The Americans then built Navy Town near massacre bay US troops negotiate snow and ice during the battle on Attu in May, 1943.On May 29, the last of the Japanese forces suddenly attacked near Massacre Bay in one of the largest banzai charges of the Pacific campaign. The charge, led by Colonel Yamasaki, penetrated U.S. lines far enough to encounter shocked rear-echelon units of the American force. After furious, brutal, close-quarter, and often hand-to-hand combat the Japanese force was killed almost to the last man: only 28 prisoners were taken, none of them officers. U.S. burial teams counted 2,351 Japanese dead, but it was presumed that hundreds more had been buried by bombardments over the course of the battle.

This is the "Opty", a crab boat that went aground sometime around the 70's or 80's.