continuous bomber presence at the base. One four-month deployment involving four B-2s began in March 2009. In March 2009, the base announced that it would investigate allegations made by a whistleblower of environmental violations within the protected area of the base. The allegations included poaching, illegal trapping of coconut crabs and resale of trophy deer, paving beaches, and stripping vegetation used for nesting by endangered hawksbill turtles and green sea turtles. Public Employees for Environmental Responsibility (PEER) said, "The Air Force program for protecting Guam's natural resources has utterly broken down." The Department of Defense Inspector General (DOD IG) determined that the Air Force responses to the PEER allegations adequately addressed the issues raised. Consequently, DoD IG determined further investigation was not warranted. The strategic importance of Andersen AFB was brought to the forefront on Tuesday, 12 February 2013 when the base was circled by two Russian Tupolev Tu-95 Bear-H bombers hours prior to President Obama's State of the Union Address. Their flight was monitored by US F-15 fighter jets. The Russian bombers later left the area in a northbound direction. As tensions escalated between the U.S. and the North Korean regime, the latter threatened to strike the island. A total of 816,393 munitions assets valued at over $95 million were delivered to Andersen Air Force Base between 21 August and 30 September 2017. In early 2019, the main operational and flying units on the base included the 36th Wing (PACAF), elements of the 624th Regional Support Group, the 734th Air Mobility Support Squadron (Air Mobility Command), Detachment 1, 69th Reconnaissance Group, flying the Northrop Grumman RQ-4 Global Hawk, and the Helicopter Sea Combat Squadron Two-Five (HSC-25), U.S. Navy, flying the Sikorsky MH-60S. In April 2020, sixteen years of continuous bomber presence (CBP) at Andersen ended when the USAF announced it was no longer permanently basing strategic bombers outside the continental United States. Since 2004, B-1B Lancer, B-2A Spirit and B-52G Stratofortress aircraft deployed to Guam on a rotational basis. Despite the move, bombers are expected to continue to deploy on an ad hoc basis. As part of the establishment of Marine Corps Base Camp Blaz, additional facilities are being constructed on Andersen to house Marines to be stationed there. In addition, the North Ramp on Andersen is being converted for Marine Corps air operations and the abandoned housing facility Andersen South (south of the base proper) is being converted