Complex sentence: The Second Bombardment Wing, abbreviated both as 2d Bombardment Wing and 2nd Bombardment Wing, of the United States Army Air Forces is a disbanded unit whose last assignment was with the Continental Air Forces, based at McChord Field, Washington.
Split into simpler sentences: The Second Bombardment Wing, abbreviated both as 2d Bombardment Wing and 2nd Bombardment Wing, is a disbanded organization of the United States Army Air Forces. Its last assignment was with the Continental Air Forces, based at McChord Field, Washington.