LONDON — Three American senators arrived in Tallinn, Estonia on Dec. 27 to reassure the Baltic nations that the United States remained committed to their defense and to the NATO alliance.
The visit by the senators — John McCain, Republican of Arizona; Lindsey Graham, Republican of South Carolina; and Amy Klobuchar, Democrat of Minnesota — came as Estonia and other former Soviet republics that are now members of NATO have grown apprehensive over whether President-elect Donald J. Trump will uphold longstanding American commitments to the alliance.
