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The prohibition on assisting, encouraging, or inducing prohibited activities

The prohibition on assistance, encouragement, and inducement of prohibited activities is the provision of the TPNW which is contravened by the most states. Based on available information, the Nuclear Weapons Ban Monitor has concluded that 36 states not party were engaged in conduct in 2020 that was not compatible with this prohibition.

NWBM Japan
Japan’s former Prime Minister Shinzo Abe and Defence Minister General Nakatani visiting the USS Ronald Reagan in 2015. Japan is one of the states with conduct that is not compatible with the TPNW prohibition on encouraging or inducing prohibited activities through its involvement in the US-Japan Extended Deterrence Dialogue, which comprises nuclear deterrence. Photo: Kyodo/Reuters/NTB
Compliance Compability 8

Arrangements of extended nuclear deterrence
France, United Kingdom, United States, and Albania, Belgium, Bulgaria, Canada, Croatia, Czechia, Denmark, Estonia, Germany, Greece, Hungary, Iceland, Italy, Latvia, Lithuania, Luxembourg, Montenegro, Netherlands, North Macedonia, Portugal, Romania, Slovakia, Slovenia, Spain, Turkey - plurilateral arrangement (NATO).
Russia and Belarus - bilateral arrangement (CSTO/Union State).
Russia and Armenia - bilateral arrangement (CSTO).
United States and Australia - bilateral arrangement (Australia, New Zealand, United States Security Treaty (ANZUS)).*
United States and Japan - bilateral arrangement (Treaty of Mutual Cooperation and Security between the United States and Japan (Anpo)).
United States and South Korea - bilateral arrangement (Mutual Defense Treaty).