70 years ago day, Japanese forces attacked U.S. Naval base Pearl Harbor in Hawaii.

Arguably one of the most tragic days in U.S. military history, veterans and U.S. citizens across America remember Pearl Harbor Day as one of the worst days in U.S. military history. 2,402 member of the U.S. armed forces were killed on Dec. 7, 1941, which President Roosevelt called a date which will live in infamy, and an additional 1,282 were wounded in the attacks.

Pearl Harbor Day is also remembered, however, as the beginning of U.S. involvement in World War II. Of the eight U.S. battleships damaged or destroyed during the Pearl Harbor attacks on Dec. 7, 1941, all but two were raised, repaired and utilized during WWII, battling Japanese forces from 1942 to 1945.

The U.S. Arizona, one of the battleships sunk during Pearl Harbor, marks the resting place of 1,102 of the 1,177 sailors killed during the Peal Harbor attacks. It is now a national memorial site and a National Historic Landmark.

As more and more WWII veterans pass away, the legacy of Pearl Harbor Day, Dec. 7, 1941 becomes more and more crucial.

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From President Roosevelt's oft-quoted Pearl Harbor Speech to veterans' reflections on the Japanese attack, remember Pearl Harbor Day by reliving the attack through rare photos from Dec. 7, 1941 and pictures from the 70-year anniversary commemoration.

December 7, 1941 is indeed a date which will live in infamy. Honor the survivors of Pearl Harbor and the veterans of World War II by experiencing the attack once more, and the aftermath that changed U.S. history forever.