Complex sentence: He served in the Spanish-American War, fighting at the Battle of Santiago de Cuba, and as commander of the South Atlantic Squadron he played a major part in the Perdicaris incident of 1904 in Morocco.
Split into simpler sentences: He served in the Spanish-American War, fighting at the Battle of Santiago de Cuba. As commander of the South Atlantic Squadron he played a major part in the Perdicaris incident of 1904 in Morocco.