WASHINGTON (AP) — Secretary of State Marco Rubio is on his latest mission to assuage nervous U.S. allies in Europe about the Trump administration’s intentions with NATO or at least put a friendlier face on whipsawing changes and uncertainty about American troop reductions.

Rubio will attend a NATO foreign ministers’ meeting in Sweden on Friday — the same day senior Pentagon officials are expected to brief the 32-nation alliance on plans for the U.S. military’s commitment to European defense at the alliance’s headquarters in Brussels.