The Lieutenant General (Lt Gen) [Oddly enough, a Lt is
higher than a Maj in this case] wears three stars and may
command a Corps. This was the highest rank any US
officer ever attained prior to WWI. George Washington and
U.S. Grant were both Lt Gens].
Lieutenant General
A General (Gen) had better have broad shoulders,
because he has to wear four stars on each of them. He is
nicknamed a "Full General. The commander of a field
army may be a General.
General
General of the Army
A General of the Army (abbreviation unknown)
wears five small silver stars arranged in a cluster. One is
not likely to see one of them anyhow. The rank was
invented in WWII because many foreign armies had the
rank of "Field Marshal," which is higher than a four star
general, and Eisenhower and MacArthur, who commanded
allied as well as US troops, had to issue orders to some
haughty field marshals.
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