Complex sentence: In the 1950s Phillip Martin, who had served in the U. S. Army in Europe during World War II, intended only to visit Neshoba county; but after seeing the dire straits of his people, he was compelled by conscience to stay.
Split into simpler sentences: In the 1950s Phillip Martin, who had served in the U. S. Army in Europe during World War II, intended only to visit Neshoba County. After seeing the dire straits of his people, he was compelled by conscience to stay.