Complex sentence: Richard Heron Anderson (October 7,1821--June 26,1879) was a career U.S. Army officer, fighting with distinction in the Mexican-American War, and also served as a Confederate general during the American Civil War.
Split into simpler sentences: Richard Heron Anderson (October 7,1821--June 26,1879) was a career U.S. Army officer, fighting with distinction in the Mexican-American War. He also served as a Confederate general during the American Civil War.