The Kotelnikovo offensive had the advantage of avoiding any crossing of the Don. Only two of its tributaries, the Aksai and Mishkova rivers, would hinder progress, and beyond the Mishkova were thirty miles of open steppe, reaching all the way to the southern perimeter of the Kessel. When the German relief troops reached the Mishkova River, Manstein then expected Paulus to burst out with his army and link up with them.