United States Marine Corps

The United States Marine Corps (USMC), also known as the United States Marines, is a branch of the United States Armed Forces responsible for conducting amphibious operations with the United States Navy. The U.S. Marine Corps is one of the four armed service branches in the U.S. Department of Defense (DoD) and one of the seven uniformed services of the United States.

Question: are the marines a branch of the navy
Answer: no