Complex sentence: After the U.S. forces captured the bridge, Germany vainly tried to destroy it multiple times until it collapsed on March 17,1945, ten days after it was captured, killing 18 U.S. Army Engineers.
Split into simpler sentences: After the U.S. forces captured the bridge, Germany vainly tried to destroy it multiple times over the next two weeks. The bridge collapsed on 17 March 1945, ten days after it was captured, killing 18 U.S. Army Engineers.