Halsey attained the rank of major general, and his awards and decorations included the Army Distinguished Service Medal, Legion of Honor (Chevalier) (France), Croix de Guerre with palm (France), Military Order of the White Lion (Czechoslovakia), and Czechoslovak War Cross.

[4] He left the University of Alabama after receiving an appointment to the United States Military Academy (West Point) from U.S. Representative William Richardson.

[5] He then attended courses at Marion Military Institute to prepare for the West Point entrance examination,[6] which he passed in early June 1913.

[8] With the army expanding at the start of World War I, he was promoted to temporary captain on August 5, 1917, and in October he was posted to Fort Sill, Oklahoma to complete the officer's course at the Infantry School of Arms.

[8] He was briefly attached to the 19th Infantry Regiment at Camp Travis, then commanded a company of the 54th Machine Gun Battalion from March to June, 1919.

[8] The 50th Infantry traveled to Europe in November 1919, and Halsey was assigned as regimental adjutant during the organization's Occupation of the Rhineland duty in Mayen.

[8] After returning to the United States in December 1921, Halsey was assigned to command a company of the 16th Infantry Regiment at Fort Jay, New York.

[9] From August 1931 to May 1933, Halsey was a student at the United States Army Command and General Staff College, and he was promoted to major in January 1933.

[11] The awards Halsey received for his Second World War service included the: Army Distinguished Service Medal; French Legion of Honor (Chevalier); French Croix de Guerre with palm; Military Order of the White Lion (Czechoslovakia); and Czechoslovak War Cross.

[11] Halsey served as chief of staff for First Service Command at South Boston Army Base from October 1945 to July 1946.

[11] In January 1951, Halsey was assigned as deputy commander of Sixth United States Army, which was headquartered at the Presidio of San Francisco.