Yesterday, during a briefing in Latvia's capital Riga, NATO Gen. Philip Breedlove said that NATO and the United States are switching their defense doctrine from assurance to deterrence in Eastern Europe in response to a “resurgent and aggressive Russia." Breedlove added that “We are prepared to fight and win if we have to ... our focus will expand from assurance to deterrence, including measures that vastly improve our overall readiness,” Breedlove said following talks with Baltic region NATO commanders.