LZ Carolyn was one such LZ; first established as a special forces outpost near Cambodia at Prek Lok in Tay Ninh province, it was abandoned and later occupied by mechanized elements of the 1st Infantry Division. LZ Carolyn was situated in a location especially irritating to the NVA, astride one of the main access routes for the Viet Cong (VC) & NVA to reach Saigon, its presence was a constant problem for them. In April 1969, the US Army's 2/8 Cavalry reopened the LZ and began operations in its vicinity, and the hornet's nest had been prodded. Incoming rocket and mortar rounds fired by the VC/NVA were a daily and nightly occurrence, and skirmishes near the LZ were common. Then on the night of May 6, 1969, an entire NVA regiment (95C) attacked the LZ, which was defended by 300 US Army troops. As described by Tom Lane: