Go Noi Island. On 7 June PFC Dan Bullock of 2/5 Marines was killed in a PAVN sapper attack on An Hoa Combat Base, having lied about his age to enlist, he was, at 15 years old, the youngest American killed in the war. From July to August 1970 Division units conducted Operation Pickens Forest southwest of An Hoa Combat Base. From 1 September to 7 May 1971 Division and ROKMC units conducted Operation Imperial Lake in the Quế Sơn District south of Da Nang. On 13 January 1971 Operation Keystone Robin Charlie began with the standing down of the initial units supporting the division. The redeployment accelerated in mid-February but then slowed when HMH-463, HML-167, HMM-263 and MASS-3 were retained to support Operation Lam Son 719. Throughout April the remaining Division units transferred bases and tactical areas of responsibility to the Americal Division. On 14 April 1971 the 3rd Marine Amphibious Brigade was activated at Camp Jay K. Brooks and III Marine Amphibious Force transferred all remaining Marine forces to it. On 30 April President Richard Nixon welcomed the division back to Camp Pendleton and awarded it a second Presidential Unit Citation for its service in South Vietnam. The division lost 7,012 men killed in action in South Vietnam. In 1975, the division supported the resettlement of South Vietnamese refugees by providing food and temporary shelter at Camp Pendleton for Vietnamese refugees as they arrived in the United States. Desert Shield and Desert Storm In 1990, the 1st Marine Division formed the nucleus of the massive force sent to the Middle East in response to Iraq's invasion of Kuwait. During Operation Desert Shield, the division supported I Marine Expeditionary Force (I MEF) in the defense of Saudi Arabia from the Iraqi threat. In 1991, the division went on the offensive as part of U.S. Marine Forces Central Command (MARCENT) with the rest of Coalition Forces in Operation Desert Storm. The 1st Marine Division destroyed around 60 Iraqi tanks near the Burgan oil field without suffering any losses. 1st Marine Division Task Force Ripper (RCT-7) M60A1 RISE Passive Patton tanks destroyed about 100 Iraqi tanks and armored personnel carriers, including about 50 top-of-the-line Soviet T-72 tanks. These efforts were instrumental in the liberation of Kuwait from Iraqi forces. 1992 Los Angeles riots On 2 May 1992, the 1st Marine Division took part of Operation Garden Plot to help local and