America’s trade war with China and diplomatic engagement with North Korea have captured the headlines. But what of America’s stalwart ally Japan? Prime Minister Shinzo Abe had established the closest relationship with President Trump of any world leader. But Tokyo didn’t receive preferential treatment on tariffs and was surprised by the U.S. policy reversal on North Korea. Abe traveled to the U.S. to ensure Japanese priorities were addressed during the Trump-Kim summit.