The US is poised to announce it is withdrawing from a landmark nuclear missile pact with Russia, an agreement that has been a cornerstone of superpower arms control since the Cold War.
The Trump administration’s move, which has been expected for months, would follow years of unresolved dispute over Russian compliance with the Intermediate-Range Nuclear Forces, or INF, treaty.
An announcement, which is expected to come as early as Friday, would not mean an immediate pullout, but would start a six-month countdown that could lead to a permanent US withdrawal from the accord.
During that time, Washington could choose not to pull out of it, if Russia comes into compliance with the treaty. However,…