This establishment had cheap beer and 50-cent shots of whiskey, but no stools or chairs as they "splintered too easily in event of a fight". Other entertainment included a brothel named "Pleasure Island", but this was closed in 1941 and later replaced by part of the U.S. Navy submarine base. The 500-man mess hall doubled as a theater. The tickets for military were 15 cents and 35 cents for civilian workers. In early 1942, intelligence officers of the U.S. Navy predicted that there would be a Japanese attack in the North Pacific area, and naval codebreakers warned Dutch Harbor of the impending attack. On June 3, 1942, at 5:45 a.m., 20 Japanese planes from two aircraft carriers of the Imperial Japanese navy bombed Dutch Harbor in the "Battle of Dutch Harbor," targeting the radio station and the petroleum storage tanks, and continuing the fight a day later. It was the first aerial attack on the continental United States during World War II. By mid-1942, a small submarine base was in place, with a squadron of old U.S. Navy S-class submarines; these were withdrawn by late 1943 due to the availability of longer-range submarines (such as the "Gato" class) operating elsewhere. By May 1943, a peak of 10,151 sailors and 9,976 soldiers were stationed at the base. In 1947, the last units of the U.S. Navy left Dutch Harbor and the base was decommissioned. In 1952, the U.S. Army Corps of Engineers stored 232 surplus buildings on 448 acres of land of the Fort Mears Military Reservation. During the mid-1980s, the US government finally funded a cleanup of the derelict fort, and the area was turned over for commercial use. The U. S. Navy also scrapped its air base on it. The harbor is prominently featured in the Discovery Channel reality television series "Deadliest Catch", which has been airing there since 2005. Dutch Harbor first appeared on the 1930 U.S. Census as an unincorporated village. It returned lastly in 1940, and did not appear again separately afterwards. It was later annexed into Unalaska. Dutch Harbor is ranked as a top fishing port with more than a billion dollars transferred each year. Huge harvests of pollock and cod in the Bering Sea are part of this total. The Bering Sea has a continental shelf that is one of the world’s largest, and supports a rich ecosystem.