Special Operations Command SOCOM. Condition: Used, and in nice shape. This coin is 1 1/2 inches in diameter. Operated by the United States Navy. And United States Special Operations Command. Designed to provide stealthy submerged transportation for special operations forces. Primarily United States Navy SEALs. From the decks of nuclear submarines. For primary use as an insertion platform for covert. The program was abandoned after the only prototype example of the class was damaged beyond economic repair in an accidental fire. ASDS was conceived to address the need for stealthy long-range insertion of special operations forces on covert or clandestine missions. Previous mini-subs were of the wet variety, exposing combat Swimmers to long, cold waits during transit that impeded combat readiness on arrival, and had limited blind underwater navigational capability. In April 2006, the program for new submarines was canceled and Northrop Grumman notified of termination. The current submarine was still in development and use until damaged in a “serious fire” in November 2008. As of December 2008 the cause of the fire is yet to be determined. Given the probable extent of fire and water damage (the mini-sub burned for six hours and remained sealed for two weeks) it was highly unlikely that the craft could be saved. On 24 July 2009, US Special Operations Command. (USSOCOM) announced that the ASDS was not going to be repaired. Never personally given any of the coins. All coins are guaranteed to be in excellent condition unless otherwise specified above. The free listing tool. The item “Advanced SEAL Delivery System ASDS Special Operations SDVT-1 Navy Challenge Coin” is in sale since Sunday, January 17, 2016. This item is in the category “Collectibles\Militaria\Current Militaria (2001-Now)\Original Items\Challenge Coins”. The seller is “rolyat11″ and is located in Panama City, Florida. This item can be shipped worldwide.