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When was Okinawa officially declared secure after the battle?

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U.S. Marines on Okinawa — Battle of Okinawa U.S. Marines battling for control of a ridge near Naha, Okinawa, May 1945.

The campaign for Okinawa was officially declared ended on July 2, 1945.1

While major resistance on the island concluded on June 21, 1945, and the Japanese commanding general committed suicide the following day, the official declaration of the campaign's end occurred shortly thereafter.12