The Pentagon said they considered the IRBM launch an experimental exercise because the missile had never been fired in battle.
Vladimir Putin sends a message to Ukraine, West with firing of new longer-range missile
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The U.S. nuclear policy is outlined in the Pentagon’s 2022 nuclear posture review that says as long as nuclear weapons exist, the main role for nuclear arms is to deter attacks on the U.S. or its allies.
China, Russia, North Korea collaborating on strategic weapons threats: Pentagon report
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