Green beret
U.S. Special Forces wear the green beret as a distinction of excellence and uniqueness within the Army.
Aaron Bank
Colonel Aaron Bank (November 23, 1902 – April 1, 2004) was a United States Army officer, and the founder of the US Army Special Forces, commonly known as the "Green Berets". He is also famous for his exploits as an OSS officer during World War II, parachuting into France to coordinate and activate the French Resistance and organizing an operation intended to capture Adolf Hitler. During his retirement years, Bank played a quiet but critical role in warning the nation about the risks of terrorism and modern technology and he is largely responsible for the high level of security at U.S. nuclear power plants since the early 1970s.