Ukraine fires several U.S.-made longer-range missiles into Russia for the first time [Video]

By Hanna Arhirova And Illia Novikov The Associated Press

KYIV, Ukraine (AP) — Ukraine fired several American-supplied longer-range missiles into Russia, officials said Tuesday, marking the first time Kyiv used the weapons that way in 1,000 days of war.

The use of the Army Tactical Missile System, known as ATACMS, came as Russian President Vladimir Putin formally lowered the threshold for using nuclear weapons, opening the door to a potential nuclear response by Moscow to even a conventional attack by any nation supported by a nuclear power. That could include Ukrainian attacks backed by the U.S.