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Pearl Harbor (see more photos) on Oahu, Hawaii, is a significant historical location. It was here where the Japanese attacked the U.S. Pacific fleet on December 7, 1941, which led the United States to enter World War II. Today, Pearl Harbor (including the Arizona Memorial) is the most-visited destination on Oahu, with more than 1.5 million visitors per year.
Pearl Harbor. For its current operations as a military base, see Naval Station Pearl Harbor. For the attack in 1941, see Attack on Pearl Harbor. For other uses, see Pearl Harbor (disambiguation).