General-in-chief military forces in the field, as the generals-in-chief did in the 19th century. The rank of "General of the Armies of the United States" was conferred upon General John J. Pershing in 1919 and to Lieutenant General George Washington (posthumously) in 1975 by acts of Congress. Washington's date of rank was retroactively dated to 1799, so that he will always be the senior ranking general of the United States Army. (American general ranks and titles may be a little confusing; however, as reference is cited the public domain information of the Center for Military History of the United States Army
General of the Armies recognized six-star general rank in the United States military hierarchy. John Pershing's status also remained in a very gray area, in particular because of the vague statements made by Secretary of War, Henry L. Stimson, and the fact that Pershing was never on active duty at the same time as a five-star General of the Army. In the early 1950s, supporters of Douglas MacArthur began to petition the United States government to authorize a "promotion" to the rank of General of the Armies. MacArthur was at this time a retired five-star general and, with the movement to promote him, it