alongside the 1/12 Cavalry, quickly responded and moved into the village of Thon an Thai, just east of Quảng Trị City. They launched a heavy aerial rocket attack against the PAVN, forcing them to break off the Quảng Trị attack and disperse. Quảng Trị City was liberated within the next ten days. On 2 February 2 Brigade's 2/12 Cavalry was tasked with sealing off the western approaches to the city of Huế, while the ARVN and Marines cleared out the PAVN/VC forces inside the city. After 25 days of fierce block-by-block fighting, the ARVN/Marine force succeeded in liberating the city. During the battle for Hue, the PAVN/VC suffered more than 8000 casualties. While the 1st Cavalry Division was repelling the Tet Offensive, the 26th Marine Regiment was taking heavy bombardment and ground attacks at the Khe Sanh Combat Base. On 1 April 1968, the 2nd Brigade, alongside other 1st Cavalry Division elements, conducted Operation Pegasus in order to relieve the Marines at Khe Sanh. The 1st Cavalry Division completed the relief of the Marine units on 10 April and assumed responsibility for the Khe Sanh area of operations. When Operation Pegasus was concluded several days later, more than 1200 enemy fighters had been killed. On 6 May the brigade was deployed back to eastern Quảng Trị Province where it conducted Operation Concordia Square against PAVN units from 8 to 17 May. On 27 June 1968, 2nd Brigade took the lead in Operation Jeb Stuart III, a search and destroy mission in the Quang Tri Province. They decimated a PAVN infantry battalion at the village of Binh An, inflicting over 200 casualties. On 1 May 1970, the First Cavalry Division conducted a search and destroy mission in the Fishhook region of Cambodia, in what had previously been an untouched PAVN/VC stronghold. On 8 May, the 2nd Brigade discovered Rock Island East, a munitions dump where they secured more than 6.5 million anti-aircraft rounds, 500,000 rifle rounds, and thousands of rockets. On 5 May 1971, the 2nd Brigade, 1st Cavalry Division's colors were moved from Vietnam to Fort Hood, Texas, bringing the 2nd Brigade's actions in the Vietnam War to a close. For 68 months 2nd Brigade was in almost constant contact with the enemy. Peace The era from the Vietnam War until the Persian Gulf War was marked by unit reorganization and constant training. In 1979, 2nd Brigade participated in the