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The M53 was produced from 1952 to 1955, being replaced with the M55 in 1956. [2] The M55 first saw service in 1956 with the US army [1] and was used during the Vietnam War until around 1969, and subsequently withdrawn from service in the US military in favor of the M110 howitzer. [3] [4] Other NATO countries also received some. The last M55 in ...
An M55 rocket containing Sarin being destroyed at Johnston Atoll in 1990. During the 1960s the Army stored many M55s at Black Hills Army Depot. [2] The M55 was also stored at the Rocky Mountain Arsenal and in Okinawa, Japan. [2] The rockets in Japan were moved to Johnston Atoll during Operation Red Hat where they were destroyed during the 1990s.
The last munition, an M55 rocket containing GB nerve agent, was destroyed July 7, 2023. It marked the last chemical weapon in the U.S. stockpile. Since 1944, the Army stored 523 short tons (474 t) of nerve agents sarin (GB) and VX and mustard agent in 155mm projectiles, 8-inch projectiles and M55 rockets at BGAD. That was about 2% of the nation ...
The M55 rocket containing VX nerve agent was destroyed Tuesday at the Blue Grass Chemical Agent plant. According to Kentucky officials, the last stockpiles of a deadly Cold War-era chemical agent ...
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Pine Bluff Arsenal stored 90,409 M55 GB rockets, 19,608 M55 VX rockets, 9,378 M23 VX landmines and 3,705 mustard ton containers. It was also the home for the Binary Chemical Weapons Facility. The facility created one of the two toxic agents that would combine to form sarin .
Nearly 90% of the one remaining chemical weapon stored at the depot in Madison County has been destroyed. Central Kentucky depot is ‘very close’ to destroying chemical weapon stockpile. What ...
The liquid agent is destroyed in one of two high-temperature (maximum 2,700 °F or 1,500 °C) ovens called Liquid Incinerators. The products of combustion from the ovens and kilns pass through extensive Pollution Abatement Systems, which catch the airborne products as salts, and hold them in a liquid slurry called brine , which is periodically ...