The USS Missouri (BB-63) last served in the Korean War.

The answer "False" is incorrect. The USS Missouri (BB-63) did indeed serve in the Korean War. The ship was recommissioned in 1950, shortly after the outbreak of the war, and participated in various combat operations, including shore bombardments and supporting United Nations forces. Its involvement in the Korean War ended in 1953 when the armistice was signed, but the USS Missouri continued its service until its final decommissioning in 1992.