On that day, SSG Holland and his team was in an area 15-miles northeast of Dak To Special Forces Camp, Dak To Province, in support of Operation Greeley. The team's mission was to penetrate an area heavily-infested by Viet Cong and North Vietnamese Army elements, to conduct surveillance of enemy routes, and to detect and report all enemy activities. Because heavy enemy activity had been reported in the area, the mission was considered to be very dangerous. Only minutes before the team was to be infiltrated, information was received that 6-8 Viet Cong had been observed from an aircraft and that they had fired on the aircraft from a location 1,000 meters from the team's primary landing zone. When offered the opportunity to postpone the mission, SSG Holland declined but he did change the infiltration landing zone location. During the first few hours after landing, the team located more than 25 foxholes, only 2 to 3 weeks old. The next morning an observation point was established from which they could watch nearby Highway 14, as well as a known enemy trail a short distance away. The observation point, on the side of a hill, was well concealed by the vegetation, yet allowed an unobstructed view. A short time later, 21 Viet Cong were seen moving along the trail. After calling for artillery fire, voices and movement were heard to their rear and they were assaulted by enemy automatic weapons fire, hand grenades and M-79 grenade launcher fire.