Ukraine and its neighbours, explained

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History: 21 February 2023

3 articles

Retrospective · events of 21 February 2023

Why Putin suspended Russia's part in New START

Security

A look back at the arms control decision announced on 21 February 2023, and at a joint naval exercise held days earlier.

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Retrospective · events of 21 February 2023

Putin links nuclear arms control to the war in Ukraine

Opinion

A look back at the 21 February 2023 decision to suspend Russia's participation in the last nuclear arms control pact with the United States.

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Retrospective · events of 21 February 2023

Russia steps back from its last nuclear treaty with Washington

Security

A look back at the decision on 21 February 2023 to suspend Russian participation in the last remaining nuclear arms control pact with the United States.

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