 After the reduction of the Ruhr Pocket, the main thrust east would be made by Bradley's 12th Army Group in the center, rather than by Montgomery's 21st Army Group in the north as originally planned.Montgomery's forces were to secure Bradley's northern flank while Devers′ 6th U.S. Army Group covered Bradley's southern shoulder.Furthermore, the main objective was no longer Berlin, but Leipzig where a juncture with the Soviet Army would split the remaining German forces in two.