The Netherlands ratified the Nuclear Non-Proliferation Treaty on 2 May 1975. In the past, the Netherlands took part in the deployment of NATO nuclear artillery shells for its self-propelled howitzers and missile artillery units. These 8 inch shells and warheads for Honest John, and later Lance, missiles were stored at the special ammunition stores at 't Harde and Havelterberg. These weapons are no longer operational. being shown a disarming procedure on a dummy at Volkel Air Base.Until 2006, Royal Netherlands NavyP-3 Orion aircraft, and their predecessors the P-2 Neptunes, based at former Naval Air Station Valkenburg in Katwijk and Curaçao in the Caribbean were assigned U.S. Navy Nuclear Depth Bombs for use in anti-submarine warfare. These weapons were originally the Mk 101 Lulu, which yielded 11 kt; later, they were replaced by the Mk-57. The NDBs were stored under U.S. Marine guard at RAF St. Mawgan, Cornwall, UK, which also held 60 similar weapons for the use of RAF Shackleton and Nimrod aircraft. The storage arrangements were agreed in 1965 between the British Prime Minister Harold Wilson and President Johnson in a secret memorandum now declassified in the UK archives. At present, the USAF still provides 22 tactical B61 nuclear bombs for use by the Netherlands under the NATO nuclear weapons sharing agreement. These weapons are stored at Volkel Air Base and, in time of war, they may be delivered by Royal Netherlands Air ForceF-16 warplanes. The U.S. insists that its forces control the weapons and that no transfer of the nuclear bombs or control over them is intended "unless and until a decision were made to go to war, at which the treaty would no longer be controlling", so there is no breach of the NPT.
Dutch production of precursors to chemical weapons
Alongside companies from the United Kingdom, France, Germany, the United States, Belgium, Spain, India, and Brazil, Dutch companies provided Iraq with the chemicals used as precursors to produce chemical weapons for use against Iran in the Iran–Iraq War. Suffering from chemical warfare during the Iran–Iraq War, 2000 Iranians submitted an indictment some years ago with a Tehran court against nine companies that had provided Saddam Hussein with such chemicals, and 455 American and European companies, two thirds being German, provided aid to Iraq during its war with Iran. The United Nations published a 12,000-page report about the conflict and named the companies involved.
Poison gas experiments
On 20 February 2008, it was revealed that the Netherlands had conducted chemical warfare experiments with nerve gas in the early 1950s. These experiments were conducted by the TNO organization on the request of the Defense Department. They consisted of the use of sarin, tabun, soman, and a modified French gas called Stof X, which was more poisonous than sarin. The experiments were carried out on animals in the village of Harskamp and on the Vliehors bombing range, located on the island of Vlieland. After 1956, the only experiments were those conducted jointly with France and Belgium in the desert of Algeria, which utilized 6 kilograms of Stof X. The reason behind these experiments was the fear of an attack by the Soviet Union.