Armed Forces Day
On May 20, 1950, the US first celebrated Armed Forces Day. Armed Forces Day is celebrated on the third Saturday in May, near the end of Armed Forces Week.
US Secretary of Defense Louis Johnson first introduced Armed Forces Day on August 31, 1949. The Department of Defense (DoD) had been created two years earlier to unite all of the Armed Forces into one department. The department conceived of the holiday to replace the individual days honoring each of the branches.