Complex sentence: U.S. Code of law explicitly limits the total number of lieutenant generals that may be concurrently active to 302 for the Army, 279 for the Air Force, and 80 for the Marine Corps.
Split into simpler sentences: U.S. Code of law explicitly limits the total number of lieutenant generals that may be on active duty at any given time. The total number of active duty general officers is capped at 302 for the Army, 279 for the Air Force, 80 for the Marine Corps.