Green beret
The 10th Special Forces Group (Airborne) had many OSS World War II veterans in their ranks when it was formed in 1952. They began to unofficially wear a berets of varying colour while training. The color green became favored because it was reminiscent of the World War II British Commando-type beret. The 10th Special Forces Group (Airborne) deployed to Bad Tolz, Germany in September 1953. The remaining cadre at Fort Bragg formed the 77th Special Forces Group. Members of the 77th SFG began searching through their collections of berets and settled on the Rifle Green colour of the British Rifle Regiments (as opposed to the Lovat Green of the Commandos) from Captain Mike de la Pena's collection. Captain Frank Dallas had the new beret designed and produced in small numbers for the members of the Special Forces.
Bolivian Army
Army officers, NCOs, and enlisted personnel generally wear gray service uniforms. For tropical areas they wear gray-green service uniforms. Army fatigue uniforms are olive green, and combat uniforms consist of US woodland pattern camouflage and Desert pattern camouflage. The standard headgear for enlisted personnel is the beret bearing the national colors red, yellow and green. Armored troops are distinguished by black berets, and paratroops also by black berets. Special forces wear distinctive camouflage uniforms with green berets.