Complex sentence: The "C-23A Sherpa" entered USAF service in Europe in 1985 based at Zweibrücken Air Base they continued in use in the EDSA role until November 1990 with the post-cold war force reductions.
Split into simpler sentences: The "C-23A Sherpa" entered USAF service in Europe in 1985 based at Zweibrücken Air Base. It continued in use in the EDSA role until November 1990 with the post-cold war force reductions.