Army Chief of Staff (number of stars depend on rank)

(Courtesy of Flags Of The World)

Marshal
(Courtesy of Flags Of The World)

General of an Army
(Courtesy of Flags Of The World)

General of an Army Corps
(Courtesy of Flags Of The World)

General of an Army Division
(Courtesy of Flags Of The World)

General of an Army Brigade
(Courtesy of Flags Of The World)