 Complete the following phrase:  It was first formed, after Operation Barbarossa, the German invasion of the Soviet Union, had commenced, from elements of the 26th and 37th Armies under the command of Major General Kuzma Petrovich Podlas in August 1941 at the boundary of the Bryansk Front and the Soviet Southwestern Front. By 25 August 1941 the 135th and 293rd Rifle Divisions, 2nd Airborne Corps, 10th Tank Division, and 5th Anti-Tank Brigade had been assembled to form the force. As part of the Southwestern Front, it then took part in the 