There were two. Admiral Chester Nimitz, based in Hawaii, commanded the Central Pacific, and also the US Pacific Fleet. Army General Douglas MacArthur, initially based in Australia after escaping from the Philippines, commanded the Southwest Pacific . There was also a China-Burma-India Theater of Operations in the war against Japan.
Douglas MacArthur WW2
As commander in chief of the armed forces
Admiral Chester Nimitz was commander of the American fleet in the Pacific and the western thrust that was used in the theater. General Douglas MacArthur was the army commander in the Pacific theater and lead the central thrust twords Japan in the Pacific front.
Expressed Powers...... o.O
As head of state, and head of the Executive branch of the government, the President is the commander in chief of the US armed forces.
It recognized the Minutemen as the Continental Army, appointed George Washington as the army's commander, and authorized the printing of paper money to pay its troops.
Admiral Chester W. Nimitz had overall command of all air , land and sea forces in the Pacific theater : Commander in Chief, United States Pacific Fleet (CinCPac) .
General MacArthur was the Supreme Allied Commander of the ground troops in the Pacific Theater of World War 2. General Eisenhower was the Supreme Allied Commander of the European Theater of the war.
Douglas MacArthur was the Supreme Commander of ground forces in the Pacific.
It would be unwise to decline a command performance. Ground Control, this is Mission Command -Do you copy? By your command, my liege!
Bull Halsey. 2nd answer: Husband Kimmell commanded the Navy in the Pacific in World War II when Japan attacked Pearl Harbor. (assuming this is the time period that you were asking about) After he was removed as commander, Chester Nimitz was appointed commander, later to be commander in chief, Pacific and led all branches of the military there. William 'Bull' Halsey and Raymond Spruance commanded large areas of the north Pacific, under Nimitz, while General MacArthur commanded the troops in the South Pacific.
General MacArthur for the Army. General Howling for the Marines.
The American Commander in the southern pacific was Douglas MacArthur at that time The American Commander in the Central pacific was Chester W.Nimitz
He was the army commander of US troops in Korea during the Korean War