The United States, France and Britain told NATO envoys on Saturday that their coordinated airstrikes on the Syrian government targets overnight “were a last resort and aimed to stop more chemical attacks,” according to NATO Secretary-General Jens Stoltenberg. The alliance’s chief said that the strikes “degraded the capabilities of Syria to conduct new attacks.” NATO ambassadors were briefed at a special session at the alliance headquarters and the military action won support from the other 26 NATO members, Reuters reported. “Chemical weapons cannot be used with impunity and cannot be normalized,” Stoltenberg said. NATO was not involved in the strikes.