 All the armies assigned to cross the Rhine had elements east of the river, including the Canadian 1st Army in the north, which sent a division through the British bridgehead at Rees, and the French 1st Army in the south, which on 31 March established its own bridgehead by assault crossings at Germersheim and Speyer, about south of Mainz.With spectacular thrusts being made beyond the Rhine nearly every day and the enemy's capacity to resist fading at an ever-accelerating rate, the campaign to finish Germany was transitioning into a general pursuit.In the center of the Allied line, Eisenhower inserted the new 15th Army, under U.S. 12th Army Group control to hold the western edge of the Ruhr Pocket along the Rhine while the 9th and 1st Armies squeezed the remaining German defenders there from the north, east, and south.