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Project 112 and SHAD

1962Contested

From 1962 to 1973 the Pentagon's Project 112 and its shipboard arm, Project SHAD, tested chemical and biological agents, including sarin and VX, on ships and in the field, exposing thousands of service members who were not told.

The story

Project 112 began in 1962 as one of about 150 Pentagon projects ordered by Defense Secretary Robert McNamara to review U.S. military capabilities. Run from the Deseret Test Center at Fort Douglas, Utah, it tested how chemical and biological weapons would spread and how to defend against them, in places ranging from Alaska and Hawaii to Pacific islands, Canada and Britain. Its Navy component, Project SHAD, short for Shipboard Hazard and Defense, sprayed ships at sea, mostly with simulants believed to be safe and in some tests with live chemical or biological agents, to see how well crews and decontamination systems could cope.

About 6,000 service members took part, many without being told what they were exposed to. For decades the Defense Department denied the tests involved people. After CBS News reported on SHAD in 2000 and veterans pressed for answers, the Pentagon acknowledged in 2002 that live agents had been used near personnel and released fact sheets on about 50 tests. Congressional hearings that year led the Department of Veterans Affairs to contact participants, and Representative Mike Thompson of California pushed for years for health studies and benefits.

Why it mattered

  • The admissions of 2002 forced the Pentagon to identify and notify thousands of exposed veterans.
  • Project 112 revealed that open air chemical and germ testing continued well into the 1970s, years after President Nixon renounced offensive biological weapons in 1969.
  • The case shaped later VA policy on environmental exposures during military service.

Drafted by AI (Claude) from the sources above and checked against them by AI; no historian has reviewed this page. Spot a mistake? Suggest a correction. How pages are made

Contested history

Consensus: Pentagon fact sheets released in 2002 and Senate hearings confirm that Project 112 and SHAD exposed service members to chemical and biological agents. Health effects remain uncertain.

The military exposed service members to nerve agents and biological agents in field testsEstablished
The Defense Department acknowledged in 2002 that tests used sarin, VX and other agents near personnel, and released fact sheets.
The Pentagon denied the human exposures for decadesEstablished
Veterans and members of Congress documented years of official denials before the 2002 disclosures.
SHAD exposures caused lasting illness in veteransDebated
A 2007 Institute of Medicine study found no clear differences in overall death rates but some differences in health, and many veterans believe their illnesses are linked. Evidence for specific diseases remains limited.

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