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Nuclear umbrella

0:45

Trump to promise S. Korea and Japan protection of "nuclear umbrella": Yomiuri Shimbun

1:51

U.S. has to provide nuclear umbrella for S. Korea: incoming USFK commander

1:01

S. Korea, U.S. to discuss security measures, including nuclear umbrella

1:42

CFR's Zenko: Removing Europe's Nuclear Umbrella

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U.S. has to provide nuclear umbrella for S. Korea: incoming USFK commander

Nuclear umbrella refers to a guarantee by a nuclear weapons state to defend a non-nuclear allied state. The phrase is usually used in reference to the security alliances of the United States with Japan, South Korea, the North Atlantic Treaty Organization, and Australia, originating with the Cold War with the Soviet Union. For some countries, it was an alternative to acquiring nuclear weapons themselves; other alternatives include regional Nuclear-Weapon-Free Zones or Nuclear Sharing.
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    • NATO 

    • ANZUS 

    • Japan 

    • Warsaw Pact (former) 

    • Russian nuclear umbrella 

    • Missile defense