“A fallback plan to ensure Europe can defend itself using NATO’s existing military structures if the U.S. departs is gaining traction after getting buy-in from Germany, a long-term opponent of a go-it-alone approach,” the Wall Street Journal reports.“The plans—advancing informally through side discussions and over dinner meetings in and around the North Atlantic Treaty Organization—aren’t intended to rival the current alliance, participants said. European officials are aiming to preserve deterrence against Russia, operational continuity and nuclear credibility even if Washington withdraws forces from Europe or refuses to come to its defense, as President Trump has threatened.”“The plans, first conceived last year, underscore the depth of European anxiety over U.S. reliability.”