They operated out of Chu Lai the sprawling base camp on the coast of South Vietnam, home to the 23rd Infantry Division and the 75th Rangers. Their missions were conducted in the northern provinces, dubbed by the military as 1st Combat Tactical Zone (1CTZ).From Rosemary's Point at Chu Lai, to Da Nang, to the Tuy Lon River and the White Mountains, across the Hai Van Pass to Phu Bai. They were both recon and striker unit, sometimes just looking for intell, sometimes attacking and sometimes being attacked. Often deployed to reinforce a small camp or firebase. Sometimes workng as convoy security.Mostly it was HOT! Life for them was either base camp boring, or "boonie rat" intense in full "battle rattle". Sometimes assigned missions to locate or capture specific targets. All of their missions were both classified and clandestine. Even their existence was denied. As much as possible their movements were hidden or camouflaged within larger unit operations and movements. Their operations were usually conducted with niether back-up, nor support readily available. They were required to move and survive on their bush skills, to adapt, over come, improvise, or if that failed E&E (escape and evade) back to a pick-up or rendezvous point for extraction. This story is about serving in Vietnam as professional soldiers in a "No Such Unit Exists" status. Part of the "other" Army in - South Vietnam, Republic of "A HARD PLACE."