Defense Spending European Security Ukraine Defense Strategies Security Guarantees Collective Defense European Defense Troop Deployment Germany Military Aid Defense Cooperation Russia Military Aid to Ukraine Military Spending Support for Ukraine Eastern Europe Military Strategy Military Alliances Peacekeeping Operations NATO Operations Military Support U.S. Foreign Policy NATO and Ukraine NATO Expansion Ukraine Conflict Nordic Defense Cooperation NATO-Russia Relations Membership Issues Article 5 Peacekeeping Defense Weapons Supply Collective Security Security Alliances Defense Policy NATO Summit Finland Mark Rutte Defense Goals Security Assistance Air Defense US Troop Withdrawal NATO Burden Sharing European Defense Forces UK Military Involvement Potential Aggression UK Military Involvement in Ukraine Defense Capabilities U.S. Involvement NATO and Russia U.S. Military Presence European Defense Integration Military Presence in Ukraine Troop Deployment Strategies Ukraine Membership Transatlantic Cooperation Civilians on the Battlefield Nuclear Weapons Military Rhetoric Border Security Russian attack US funding European allies Trump presidency NATO Conflict Preparedness Sweden NATO Assistance Membership Arms Deals Russian Threats Ukraine's Defense Aspirations European Autonomy Security Cooperation Arms Supply Corruption NATO Presence in the Baltic Sea UK's Role in NATO Defense Programs Arms Deliveries Defense Expenditure Leadership Summit U.S. Military Aid U.S.-Iran Relations Alliance Dynamics Eastern Europe Defense Nuclear Deterrence Collective Commitments Summit Meetings Member States Landmines Force of Reassurance NATO Response NATO Summits Weapon Supply Military Cooperation Troops in Ukraine US Military Aid Arms Sales NATO Spending Geopolitical Strategy