America, France, and the UK. They are able to be utilized by other NATO members if those three decide it is necessary.

>A number of NATO member countries contribute a dual-capable aircraft (DCA) capability to the Alliance. These aircraft are central to NATO’s nuclear deterrence mission and are available for nuclear roles at various levels of readiness. In their nuclear role, the aircraft are equipped to carry nuclear bombs in a conflict and personnel are trained accordingly.

[July 2022] https://www.nato.int/cps/en/natohq/topics_50068.htm

>Currently, seven Allies voluntarily participate in the NATO nuclear mission by contributing DCA. As implied by its name, DCA serve two roles. The first is to provide conventional air power capabilities, such as air policing and combat support, on a day-to-day basis. The second is to operationally deploy nuclear weapons in a conflict, following a political decision by the NPG. DCA are also a visible and valuable instrument for strategic communications. In a crisis or conflict, DCA could be used to send deterrence signals about operational readiness or to demonstrate resolve.

[PDF February 2022] https://www.nato.int/nato_static_fl2014/assets/pdf/2022/2/pdf/220204-factsheet-nuclear-sharing-arrange.pdf

https://en.wikipedia.org/wiki/Nuclear_sharing

> As of November 2009, Belgium, Germany, Italy, the Netherlands and Turkey are hosting U.S. nuclear weapons as part of NATO's nuclear sharing policy.

> There are 20 B61 bombs stored on the base for delivery by German PA-200 Tornado IDS bombers of the JaBoG 33 squadron. By 2024 Germany's Tornado IDS aircraft are due to be retired, and it is unclear what nuclear sharing role, if any, Germany will then retain.[3][17] In 2022, after the Russian invasion of Ukraine, Germany announced that it would buy 35 F-35 jets to replace the Tornado in its nuclear sharing role.