NATO’s top military officer is considering alternative options to defend Europe in case it faces an attack from Russia, according to multiple outlets. The discussions come after the United States announced it will reduce the number of aircraft and warships it would provide during a security crisis. In response, NATO is assessing how it could maintain deterrence and support member states if fewer U.S. forces are available. The reports describe the review as scenario-based planning for potential contingencies involving Russia, rather than a change in an immediately active operation. One outlet also frames the issue as part of broader European defense discussions, including perspectives from a guest who comments on the implications of U.S. force posture changes for European security planning. Across the coverage, the central point is that NATO leadership is re-evaluating how to organize support and readiness for Europe under altered assumptions about U.S. contributions in the event of a crisis. The articles do not indicate that an agreement has been finalized, only that planning and options are under consideration.