Complex sentence: The 1st Filipino Infantry Regiment, a segregated United States Army infantry regiment made up of Filipino Americans from the continental United States and a few veterans of the Battle of the Philippines, was formed and activated at Camp San Luis Obispo, California.
Split into simpler sentences: The 1st Filipino Infantry Regiment was a segregated United States Army infantry regiment made up of Filipino Americans from the continental United States and a few veterans of the Battle of the Philippines. It was formed and activated at Camp San Luis Obispo, California.