 From 1921 to 1939 in Transylvania <unk> General of Army no . 3 had subordinate the 6th and 7th Army Corps . By 1 April 1921 , when he disbanded Forces Western Command , to order 6th Army Corps ( and earlier structures ) have been generals Prezan Constantin , Constantin <unk> <unk> <unk> , <unk> George , Nicholas and Arthur <unk> et al . After 1 April 1921 to 23 March 1939 , C. 6 A. was commissioned by General Nicholas <unk> , <unk> Pop <unk> Alexander , John <unk> , <unk> <unk> <unk> <unk> and Christie <unk> , prominent military leaders , whom Octavian <unk> wrote that " in the interwar period , in Cluj in Transylvania , commanders have made a large @-@ scale opera and unanimous praise . " Three divisions were part of 6th Army Corps : 16th ( <unk> ) , 17th ( Oradea ) and 20th Infantry Divisions ( <unk> @-@ Mureş ) . With rapid and marked worsening international situation , especially in neighboring Romania , on 22 September 1939 , the 4th Army , recently founded , became Army Group Command no . 1 of Transylvania . 
