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The Intermediate-range Nuclear Forces Treaty (INF) required destruction of US and Soviet ground-launched ballistic and cruise missiles with ranges of 500 to 5,500 kilometers; it has long been considered central to the East-West arms control regime. In 2018 President Trump announced that the United States would withdraw from the treaty. Here are some highlights of the Bulletin‘s expert coverage of threats to the treaty, including alleged Russian violations and the proposed US pullout.