Complex sentence: The U.S. designed these engines to be used in a new specially designed nuclear bomber, the WS-125, which was eventually terminated by Eisenhower who cut NEPA and told Congress that there was no urgency for the program.
Split into simpler sentences: The U.S. designed these engines to be used in a new specially designed nuclear bomber, the WS-125. The WS-125 was eventually terminated by Eisenhower who cut NEPA and told Congress that there was no urgency for the program.