Complex sentence: Oath Keepers is an American organization associated with the patriot movement and which encourages members--some of whom are said to be current and former U.S. military and law enforcement officers--to disobey any orders they believe violate the Constitution.
Split into simpler sentences: Oath Keepers is an American organization associated with the patriot movement. It encourages members--some of whom are said to be current and former U.S. military and law enforcement officers--to disobey any orders they believe violate the Constitution.