All service members require the beginning background check for a security clearance National Agency Check with Local Agency Check and Credit Check NACLC
Initially, President Kennedy, then escalated by President Johnson. It shoud be noted however that when Kennedy took office in 1961, US Military Advisors were already present in Vietnam, Laos and Cambodia as part of the Military Assistance Advisory Group (Indochina) (MAAG). The CIA and Air America was fully involved alongside of the French Forces for the eight years of the Eisenhower administration and the US Military was training South Vietnamese not only in country but also at Stateside Military schools. By June of 1955 there were already 740 Advisors on duty in Vietnam with South Vietnamese units. South Vietnam and the French also had an Intelligence Unit provided by the US Army and the Naval Security Group and the National Security Agency, and an extensive Aviation presence in country long before Kennedy's election. For the US, Vietnam really began in September of 1950 under Truman with a 10 million dollar loan to the French of WWII surplus military equipment. Since his mantra was The Buck Stops Here I suppose we can blame the whole mess on Harry.
The KGB was formed as the national security agency of the USSR.Like any other government agency, leaders specified a series of goals, resources and a time frame. People were hired and given an charter.Originally the KGB served as "...Communist state's premier secret police, internal security, and intelligence organization."It's current incarnation, however, serves a different set of politicians.You can read more, below.
On June 30, 1973, Archie Turner was the last known person drafted into the US Army. Though he did not choose to join the Army, he chose to stay. He retired in 2004 as a Sergeant Major and senior military adviser in the Defense Logistics Agency.
United States Railway Association http://www.archives.gov/research/guide-fed-records/groups/014.html
The 509 RRG was an Army Security Agency unit [formerly called the 3rd Radio Research Unit] that did radio detection of Viet Cong radio transmissions.
European Aviation Safety Agency was created in 2003.
Defence Aviation Repair Agency was created in 1999.
European Aviation Safety Agency
The Russian space agency is called Roscosmos. It is the governmental body responsible for space research and activities in Russia.
Vietnam News Agency was created in 1945.
Federal Security Agency was created in 1939.
The Russian Federal Space Agency is commonly known as Roscosmos. It was previously known as the Russian Aviation and Space Agency.
What Federal Agency regulates ADT Security
Defence Research Agency was created in 1991.
In the US, it's the Transportation Security Administration, which is part of the Department of Homeland Security.
National Agency for Computer Security was created in 2004.