In the summer of 1944 it opposed the Red Army's 1st Ukrainian Front during the Lvov-Sandomir strategic offensive operation (13 July - 29 August 1944).[3] In August 1944 the 4th Panzer Army and the 17th Army defended between Carpathian mountains and the Pripyet swamps in Galicia. In September 1944 it was renamed to Army Group A.