Complex sentence: The Battle of Albuquerque was a small engagement of the American Civil War in April, 1862 between General Henry Hopkins Sibley's Army of New Mexico and a Union Army under Edward R. S. Canby.
Split into simpler sentences: The Battle of Albuquerque was a small engagement of the American Civil War in April, 1862. Between General Henry Hopkins Sibley's Army of New Mexico and a Union Army under Edward R. S. Canby.