Short answers, pulled from the story.
The Western Allied invasion of Germany commenced in early 1945 after the Battle of the Bulge exhausted German strategic reserves. The Allies had been fighting campaigns against the Siegfried Line since late 1944 and pushed Germans back to their starting points by January 1945.
General Dwight D. Eisenhower served as the Supreme Commander of the Allied Expeditionary Force on the Western Front with 73 divisions under his command at the start of 1945. He eventually commanded a total of 90 full-strength divisions including 25 armored divisions during the operation.
Elements of the U.S. XII Corps' 5th Infantry Division began crossing the Rhine on the evening of the 22nd of March 1945 under bright moonlight. By mid-afternoon on March 23rd all three regiments were in the bridgehead and a Treadway bridge opened to traffic that same day.
The final tally of prisoners taken in the Ruhr reached 325,000 men between April 16th and the 18th of April 1945. This number far exceeded American expectations and included the formal surrender of German Army Group B remnants.
A small patrol from the 69th Infantry Division met a lone Soviet horseman in Leckwitz at 11:30 on the 25th of April 1945. The division commander Maj. Gen. Emil F. Reinhardt then met Maj. Gen. Vladimir Rusakov of the Soviet 58th Guards Rifle Division at Torgau on the 26th of April 1945.