President Biden pledged Wednesday the United States would “defend literally every inch of NATO” in the case of a Russian attack on NATO territory. Biden is meeting in Poland with leaders of the alliance’s eastermost countries, which are particularly concerned about Moscow’s aggression. The gathering follows Biden’s unannounced visit to Kyiv on Monday, and comes a day after Russian President Vladimir Putin announced the suspension of Russia’s role in its last remaining nuclear pact with the United States as the two leaders underscored their growing divide in dueling speeches.