1. Army
   Air National Guard
2. Coast Guard Reserve
   Air Force

Matt L. Urban fought in the Army as a lieutenant colonel. He is also the recipient of the prestigious French Croix de Guerre award.

1. Navy
   Marines
2. Coast Guard
   Army

Samuel D. Dealey was a formidable commander who fought in World War II. He also commanded the USS S-20 (SS-125) and earned the Purple Heart award.

1. Coast Guard
   Army
2. Navy
   Air Force

George L. Mabry, Jr. served in the Army, specifically, as a major general. He used his clever wits in Huertgen Forest to capture several German soldiers and bunkers.

1. Coast Guard
   Navy
2. Marines
   Air National Guard

James E. Williams earned several medals of valor for his service while in the Navy. He also fought in both the Vietnam War and the Korean War.

1. Air National Guard
   Air Force
2. Navy
   Coast Guard

John D. Bulkeley was a vice admiral in the Navy. He also earned many awards, including the Croix de Guerre, Navy Cross and the Medal of Honor.

1. Air Force
   Air National Guard
2. Marines
   Army

Raymond G. Davis was part of the Marines and fought in the Korean War, the Vietnam War and World War II. He also earned three Vietnamese Gallantry Cross awards.

1. Coast Guard
   Marines
2. Air Force
   Army

Raymond Harvey fought in the Army as a lieutenant colonel. He also fought in the Battle of Inchon, as well as the Battle of the Bulge.

1. Marines
   Army
2. Air National Guard
   Coast Guard

Robert L. Howard earned many awards for his service in the Army, some of which include the Purple Heart and the Bronze Star. He also fought in the Vietnam War.

1. Coast Guard Reserve
   Army Reserve
2. Air National Guard
   Marines

Smedley D. Butler held several nicknames during his time in the Marines, including "Old Duckboard" and "Old Gimlet Eye." He also earned the Marine Corps Brevet Medal.

1. Air Force
   Army
2. Marines
   Coast Guard

Merritt A. Edson fought in the Marines as a major general during several wars and battles. Some of these included World War I and the Battle of Saipan.

1. Air Force
   Coast Guard
2. Army
   Navy

Jack L. Treadwell was a colonel in the Army and served in both World War II and the Vietnam War. His bravery at Siegfried Line also allowed him to capture many German prisoners.

1. Coast Guard
   Marines
2. Navy
   Army

Joel T. Boone served in the Navy and fought in World War I, World War II, the Korean War and the Banana Wars. He also earned three Purple Heart awards.

1. Air National Guard
   Army Air Force
2. Marines
   Navy

Richard Bong was a major for the Army Air Force. He also fought in the Battle of Buna-Gona and the Battle of the Philippines.

1. Army Air Corps and Army Air Force
   Marines and Coast Guard
2. Marines and Navy
   Air National Guard and Navy

Neel E. Kearby served in both the Army Air Corps and the Army Air Force. His acts of service as a colonel earned him many awards, including the Medal of Honor and the Purple Heart award.

1. Coast Guard
   Air National Guard
2. Navy
   Army National Guard

Richard H. O'Kane earned three Navy Cross awards, three Silver Stars and many other awards for his time in the Navy. He also commanded the USS Pelias and the USS Tang.

1. Air National Guard
   Marines
2. Army
   Coast Guard

Kenneth A. Walsh was a lieutenant colonel during his time in the Marine Corps. He also earned a Medal of Honor as well as seven Distinguished Flying Cross awards.

1. Air Force and Marine Corps
   Army Air Corps and Air Force
2. Air Force and Navy
   Air Force and Coast Guard

Leon W. Johnson served in both the Army Air Corps and the Air Force. He was also a general who fought in World War II.

1. Army
   Air Force Reserve
2. Air National Guard
   Navy Reserve

James H. Doolittle served in the Army during World War II and also earned the Medal of Honor. He retaliated against Japan (because of Pearl Harbor) by leading raids into Japanese territory in 1942.

1. Army National Guard
   Marines
2. Coast Guard
   Navy

John H. Pruitt was a corporal in the Marines who fought in the Battle of Belleau Wood, among others. He also earned two Purple Heart awards and three Silver Stars.

1. Army
   Air Force
2. Coast Guard
   Marine Corps

Leo K. Thorsness was part of the Air Force military branch, where he fought in the Vietnam War. He also served in the Washington Senate.

1. Coast Guard
   Air National Guard
2. Army
   Marines

Melvin Morris was part of the Army during the Vietnam War and soon became a Green Beret. Specifically, his rank was a sergeant first class.

1. Coast Guard
   Navy
2. Army
   Air Force

Lawson P. Ramage served in the Navy as a vice admiral. He also held several commands, including the USS Trout (SS-202) and the USS Parche (SS-384).

1. Marines
   Air Force
2. Army National Guard
   Coast Guard Reserve

Henry L. Hulbert was both a captain and a first lieutenant, specifically in the Marines. He also earned the Medal of Honor and the Navy Cross.

1. Marines
   National Guard
2. Navy
   Coast Guard

Lewis Millett dedicated many years to four different military branches, one of which was the National Guard. He also fought in World War II, the Vietnam War and the Korean War.

1. Air Force
   Coast Guard Reserve
2. Marines
   Army

James L. Day was a major general in the Marines who earned both the Silver Star and the Medal of Honor. This was due in part to his high enemy kill count during the Battle of Okinawa.

1. Air National Guard
   Marines
2. Air Force
   Army

John H. Quick was a sergeant major during his time in the Marines. He also fought in the Spanish-American War and the Battle of Vera Cruz.

1. Coast Guard
   Air Force
2. Army
   Navy

Jonas H. Ingram earned many awards for his time in the Navy. He also fought in World War I, World War II and the Mexican Revolution.

1. Air National Guard
   Air Force
2. Marines
   Army

Lloyd L. Burke served in the Army and fought in World War II, the Korean War and the Vietnam War. He also earned four Purple Heart awards for his service.

1. Army
   Navy
2. Air National Guard
   Air Force

Louis Cukela served in both the Army and the Marine Corps. He specifically fought in several wars and battles, including the Battle of Belleau Wood and World War II.

1. Air Force
   Coast Guard
2. Marines
   Army

Matej Kocak was part of the Marines during World War I, where he fought in several battles. Some of these includes the Battle of Soissons and the Battle of Belleau Wood.

1. Army
   Coast Guard Reserve
2. Air National Guard
   Air Force

Desmond Doss served in the Army during World War II. He was especially noted for his bravery during the Battle of Okinawa.

1. Army and Navy
   Navy and Marines
2. Navy and Coast Guard
   Navy and Air Force

Joe R. Hooper fought in the Vietnam War and served in both the Army and the Navy. He also earned the Purple Heart Award eight times.

1. Army
   Navy
2. Coast Guard
   Marines

Herman H. Hanneken was a Marine veteran, having served in World War I, World War II and the Banana Wars. He was also awarded several medals of valor for his service.

1. Army
   Marine Corps
2. Coast Guard Reserve
   Air National Guard

Gordon Johnston was in the Army during World War I. His acts of bravery also earned him the Distinguished Service Cross.

1. Air Force Reserve
   Air National Guard
2. Navy
   Army

Edward V. Rickenbacker was a prestigious pilot during World War I, having served as a captain in the Army. This also earned him the coveted Medal of Honor.

1. Navy
   Marine Corps
2. Air National Guard
   Army

Eugene B. Fluckey served as a rear admiral during World War II, specifically in the Navy branch. He also earned the Medal of Honor in addition to the Navy Cross.

1. Navy and Marine Corps
   Air National Guard and Marine Corps
2. Army Air Force and Air Force
   Army and Navy

The answer is Army Air Force and Air Force. George A. Davis specifically fought in both World War II and the Korean War.

1. Air National Guard
   Marine Corps
2. Navy
   Coast Guard

David McCampbell served in the Navy during World War II. He also earned a Silver Star and a Medal of Honor.

1. Coast Guard Reserve
   Army National Guard
2. Army Air Forces
   Marine Corps Reserve

Thomas B. McGuire, Jr. served as a major in the Army Air Forces, where he fought in many battles of World War II. Some of these included the Battle of Buna-Gona and the Battle of the Philippines.