Green beret
When visiting the Special Forces at Fort Bragg on 12 October 1961, President John F. Kennedy asked Brigadier General William P. Yarborough to make sure that the men under his command wore green berets for the visit. Later that day, Kennedy sent a memorandum which included the line: "I am sure that the green beret will be a mark of distinction in the trying times ahead". By America's entry into the Vietnam War, the green beret had become a symbol of excellence throughout the US Army. On April 11, 1962 in a White House memorandum to the United States Army, President Kennedy reiterated his view: "The green beret is a symbol of excellence, a badge of courage, a mark of distinction in the fight for freedom". To no avail, both Yarborough and Edson Raff had previously petitioned the Pentagon to allow wearing of the green beret. The President, however, did not fail them.
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.