Complex sentence: The unit was designated as an Aggressor Squadron on 22 April 1983, the 26th Aggressor Squadron began flying the F-5E Tiger II in 1977 and added T-33's to the unit in 1986.
Split into simpler sentences: The unit was designated as an Aggressor Squadron on 22 April 1983. The 26th Aggressor Squadron began flying the F-5E Tiger II in 1977 and added T-33's to the unit in 1986.