NATO’s chief says the allies and Russia remain at loggerheads over the conflict in Ukraine but have exchanged briefings on their troop movements elsewhere in Europe to help ease tensions. NATO Secretary General Jens Stoltenberg’s remarks came after ambassadors from the military alliance’s 29 nations met Thursday for the first time this year. Russia briefed the ambassadors about new troop deployments near its western border, while NATO gave an update on forces being deployed to the Baltic states and Poland.