The Pledge of Allegiance of the United States is an expression of allegiance to the Flag of the United States and the republic of the United States of America, originally composed by Rear Admiral George Balch in 1887, later revised by Francis Bellamy in 1892 and formally adopted by Congress as the pledge in 1942. The official name of The Pledge of Allegiance was adopted in 1945. The last change in language came on Flag Day 1954 when the words "under God" were added.
The current version of the Pledge reads "I pledge allegiance to the Flag of the United States of America, and to the Republic for which it stands, one Nation under God, indivisible, with liberty and justice for all." The Pledge should be rendered by standing at attention facing the flag with the right hand over the heart. When not in uniform men should remove any non-religious headdress with their right hand and hold it at the left shoulder, the hand being over the heart. Persons in uniform should remain silent, face the flag, and render the military salute. Members of the Armed Forces not in uniform and veterans may render the military salute in the manner provided for persons in uniform.