Complex sentence: Permission was granted to form another parachute brigade in July 1942, numbered the 2nd Parachute Brigade, and Brigadier E.E. Down was selected to become its first commander.
Split into simpler sentences: Permission was granted to form another parachute brigade in July 1942. It was numbered the 2nd Parachute Brigade, and Brigadier E.E. Down was selected to become its first commander.