Operation Popeye (Project Controlled Weather Popeye / Motorpool / Intermediary-Compatriot) was a military cloud-seeding project carried out by the U.S. Air Force during the Vietnam War in 1967–1972. The highly classified program attempted to extend the monsoon season over specific areas of the Ho Chi Minh Trail, in order to disrupt North Vietnamese military supplies by softening road surfaces and causing landslides.

The former U.S. Secretary of Defense, Robert S. McNamara, was aware that there might be objections raised by the international scientific community but said in a memo to the president that such objections had not in the past been a basis for prevention of military activities considered to be in the interests of U.S. national security.

The chemical weather modification program was conducted from Thailand over Cambodia, Laos, and Vietnam and allegedly sponsored by Secretary of State Henry Kissinger and the CIA without the authorization of then Secretary of Defense Melvin Laird, who had categorically denied to Congress that a program for modification of the weather for use as a tactical weapon even existed.[1]

Build up

A report titled Rainmaking in SEASIA outlines use of lead iodide and silver iodide deployed by aircraft in a program that was developed in California at Naval Air Weapons Station China Lake and tested in Okinawa, Guam, the Philippines, Texas, and Florida in a hurricane study program called Project Stormfury.[2][3]

Objectives

Operation Popeye's goal was to increase rainfall in carefully selected areas to deny the Vietnamese enemy, namely military supply trucks, the use of roads by:[4]

  1. Softening road surfaces
  2. Causing landslides along roadways
  3. Washing out river crossings
  4. Maintaining saturated soil conditions beyond the normal time span.

The goal of the operation was to extend days of rainfall by about 30 to 45 days each monsoon season.[5]

Implementation

The 54th Weather Reconnaissance Squadron carried out the operation using the slogan "make mud, not war."[6] Starting on March 20, 1967, and continuing through every rainy season (March to November) in Southeast Asia until 1972, operational cloud seeding missions were flown. Three C-130 Hercules aircraft and two F-4C Phantom aircraft based at Udon Thani Royal Thai Air Force Base in Thailand flew two sorties per day. The aircraft were officially on weather reconnaissance missions and the aircraft crews as part of their normal duty also generated weather report data. The crews, all from the 54th Weather Reconnaissance Squadron, were rotated into the operation on a regular basis from Guam. Inside the squadron, the rainmaking operations were code-named "Motorpool".[7]

Public revelation

Reporter Jack Anderson published a story in March 1971 concerning Operation Popeye (though in his column, it was called Intermediary-Compatriot). The name Operation Popeye (Pop Eye) entered the public space through a brief mention in the Pentagon Papers[8] and a July 3, 1972, article in the New York Times.[9] Operations in Laos ceased two days after the publication of the Times article.

See also

Sources

  • Weather Modification Hearing, United States Senate Subcommittee on Oceans and International Environment of the Committee on Foreign Relations, March 20, 1974

Published government documents

  • Keefer, Edward C. Foreign Relations of the United States 1964-1968 Volume XXVII Laos United States Government Printing Office, 1998.

References

  1. ↑ "Rainmaking used as a Weapon in SE Asia". Daytona Beach Morning Journal. Daytona Beach, Florida. The New York Times News Service. 19 May 1974.
  2. ↑ SEASIA Rainmaking (Report). Department of Defense. 1974. Archived from the original on 12 June 2009.
  3. ↑ Project Stormfury (PDF) (Report). United States Department of the Navy. May 1971. Archived from the original (PDF) on February 1, 2014.
  4. ↑ "ENMOD and the US Congress". Sunshine-project.org. Archived from the original on 27 August 2009. Retrieved 25 July 2009.
  5. ↑ The Encyclopedia of the Vietnam War A Political, Social, and Military History. ABC-CLIO. 2011. p. 921.
  6. ↑ Thomas, Will. "Weather Warfare/Global Dominance Over Weather/Full Spectrum Dominance By Us Over Weather". Willthomas.net. Archived from the original on 23 February 2007. Retrieved 25 July 2009.
  7. ↑ THE AIR WEATHER RECONNAISSANCE ASSOCIATION GALLERY FOR JANUARY 2005
  8. ↑ "The Pentagon Papers, Gravel Edition, Volume 4, Chapter 2, "US Ground Strategy and Force Deployments, 1965-1968, pp. 277-604, 3rd section". Mtholyoke.edu. Archived from the original on 2009-06-12. Retrieved 2009-07-25.
  9. ↑ Seymour M. Hersh (July 3, 1972). "Rainmaking Is Used As Weapon by U.S.; Cloud-Seeding in Indochina Is Said to Be Aimed at Hindering Troop Movements and Suppressing Antiaircraft Fire Rainmaking Used for Military Purposes by the U.S. in Indochina Since '63". New York Times. Retrieved 2009-07-25.

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