President Donald Trump is set to meet with NATO Secretary-General Mark Rutte next week in Washington. The meeting is part of a larger effort to resolve tensions between the two countries, which have been at odds for decades. As recently as Wednesday, Trump considered withdrawing the U.S. from the alliance, a move that would require congressional approval. Rutte downplayed the president's irritation with NATO, stating that he was never swayed by it. The president has also expressed dissatisfaction with allies' refusal to help reopen the Strait of Hormuz, a vital passage for the world's oil supply.