 Complete the following phrase:  Following the liberation of the Crimea in late May, 4th Ukrainian Front found itself in a strategic dead-end. In a major redeployment, 2nd Guards and 51st Armies were shifted to the Reserve of the Supreme High Command, and were then railed northwards in anticipation of the coming summer offensives. In late June the 347th returned to the front in 1st Guards Rifle Corps, back in 51st Army, where it would remain for the duration, now serving in 1st Baltic Front. Exploiting into the gap in the German front created by 