MK Air Base in Romania was built to make Americans feel at home. It has hosted US troops since 1999. Last year, more than a thousand US troops left as Trump began a radical realignment of the US military forces in Europe ↧ Trump’s pressure on NATO is reshaping Europe’s defenses. Will i... The president’s confrontation with NATO hasn’t led to a major U.S. withdrawal. But a big troop cut remains an option, Pentagon sources say, and allies are preparing for a future less dependent on Washington.