el ▁to ▁five - star ▁general ▁in ▁three ▁years . ▁However , ▁rank ▁in ▁the ▁A US ▁could ▁be ▁rev oked ▁just ▁as ▁easily , ▁with ▁senior ▁command ers ▁who ▁were ▁rel ieved ▁rever ting ▁to ▁their ▁permanent ▁Reg ular ▁Army ▁rank . ▁This ▁was ▁known ▁as ▁" loss ▁of ▁the ater ▁rank ", ▁with ▁some ▁instances ▁of ▁gener als ▁returning ▁to ▁the ▁United ▁States ▁in ▁dis gra ce ▁or ▁at ▁least ▁under ▁a ▁cloud , ▁as ▁only ▁colon els ▁or ▁maj ors . ▁ ▁Div isions ▁of ▁the ▁Army ▁of ▁the ▁United ▁States ▁ ▁In ▁ 1 9 4 6 , ▁with ▁post war ▁dem obil ization , ▁the ▁Army ▁of ▁the ▁United ▁States ▁was ▁susp ended , ▁along ▁with ▁the ▁draft . ▁Offic ers ▁from ▁that ▁point ▁revert ed ▁to ▁Reg ular ▁Army ▁rank ▁and ▁all ▁en list ed ▁personnel ▁either ▁were ▁dis charg ed ▁from ▁the ▁Army ▁of ▁the ▁United ▁States ▁and ▁returned ▁to ▁civil ian ▁life , ▁or ▁accepted ▁the ▁offer ▁to ▁re en list ▁in ▁the ▁Reg ular ▁Army . ▁Units ▁raised ▁in ▁the ▁Army ▁of ▁the ▁United ▁States ▁were ▁de activ ated ; ▁if ▁the ▁Army ▁chose ▁to ▁activ ate ▁them ▁again ▁perman ently , ▁they ▁were ▁all otted ▁to ▁the ▁Reg ular ▁Army . ▁ ▁Korean ▁War ▁and ▁Vietnam ▁War ▁ ▁The ▁Army ▁of ▁the ▁United ▁States ▁was ▁dem obil ized ▁in ▁ 1 9 4 6 , ▁but ▁still ▁maintained ▁as ▁a ▁component ▁of ▁the ▁Army . ▁ ▁Upon ▁the ▁out break ▁of ▁the ▁Korean