President Joe Biden arrived to a NATO summit in Madrid, where he plans to announce a significant strengthening of forces along the alliance's eastern flank as Russia's war in Ukraine shows no signs of slowing.
NATO leaders enter the talks propelled by a diplomatic victory after Turkey dropped its objections to Finland and Sweden joining the military alliance, setting the stage for the two longtime neutral countries to enter the defensive bloc.
In Madrid, leaders plan to agree on major new security commitments the likes of which haven't been seen since the Cold War.
On Tuesday, Biden said he was sending two additional destroyers to the Rota Naval Station in Spain, intended to bolster the American maritime presence in the region.
He'll make additional announcements Wednesday on force increases on "land, sea and air," according to his top national security aide, who said US forces along NATO's eastern edge would move "in a steady state" to the region.