North Korea and Russia opened their first road bridge on Monday in a carefully choreographed display of friendship, a structure which spans the Tumen river and which both sides cast as an important milestone in their deepening strategic partnership.The first flag-adorned trucks trundled across the 1 km (0.6-mile) long two-lane bridge as Russian Prime Minister Mikhail Mishustin and North Korea’s Premier Pak Thae Song tuned in by video link to address workers and government officials from both...