Complex sentence: In 1979 the Secret Service formalized the counter-assault team program and, following the attempted assassination of Ronald Reagan, Hawkeye Renegade was assigned to full-time presidential duty.
Split into simpler sentences: In 1979 the Secret Service formalized the counter-assault team program. Following the attempted assassination of Ronald Reagan, a CAT designated Hawkeye Renegade was assigned to full-time presidential duty.