Complex sentence: After learning to fly the Martin B-26 Marauder, Raines completed her training early, she served as squadron commander at Pecos Army Air Field (now the Pecos Municipal Airport).
Split into simpler sentences: After learning to fly the Martin B-26 Marauder, Raines completed her training early. Her next duty station was as squadron commander at Pecos Army Air Field (now the Pecos Municipal Airport).