World War II - First flag on Guam on boat hook mast. Two U.S. officers plant the  American flag on Guam eight minutes after U.S. Marines and Army assault  troops landed on the Central Pacific island on July 20, 1944.

World War II - First flag on Guam on boat hook mast. Two U.S. officers plant the American flag on Guam eight minutes after U.S. Marines and Army assault troops landed on the Central Pacific island on July 20, 1944.