Hosting nuclear weapons would strengthen NATO's deterrence on its eastern flank

Security arrangement under which states commit to treat an attack on one as an attack on all, obliging joint response. Underpins alliances such as NATO and provisions of the UN Charter, making shared deterrence and coordinated military planning central instruments of international stability.

Lithuania's parliament passed the first of two votes required to remove its constitutional prohibition on hosting nuclear weapons. The amendment still needs a two-thirds majority in a second vote. It neither stations nuclear weapons in Lithuania nor establishes a US decision to deploy them.