President Donald Trump slightly misquoted one of President Franklin D. Roosevelt's best-known speeches in a tweet commemorating the anniversary of the Pearl Harbor attack.
The USS Arizona battleship was bombed and sunk during Japan's surprise morning attack on Pearl Harbor that pulled the United States into World War II.
The ceremony is set to begin at 12:55 p.m. - the exact time the Japanese attack began.
Governor Kate Brown has ordered all flags at Oregon public institutions to be flown at half-staff in honor of National Pearl Harbor Remembrance Day from sunrise to sunset on Thursday, Dec. 7.
In the days following, a stunned nation tried to grasp the enormity of the loss of 2,500 lives, with 21 American ships and 300 airplanes destroyed or damaged. On Dec. 11, 1941, the U.S. declared war on Germany and Italy, joining the Allies in World War II. Over the next four years, Americans endured a long, bloody slog.
The ceremony included the playing of Taps and a flyover of military jets.