Complex sentence: Multiple RQ-450 UAVs were assigned for night operations, locating remote jungle airstrips used by drug smuggling gangs along the border, and were typically guarded by several E- 99 aircraft.
Split into simpler sentences: Multiple RQ-450 UAVs were assigned for night operations, locating remote jungle airstrips used by drug smuggling gangs along the border. The UAVs were typically guarded by several E- 99 aircraft.