NATO European Defense Arctic Defense Alliance Funding NATO Targets US Alliances Ukraine NATO Requirements Exceeding 2% GDP Impact of Increased Spending Country-specific Plans Russia's Influence NATO Countries 2023 GDP Commitment Specific Countries NATO Allies NATO 2% GDP Goal Factors Influencing Defense Spending Experts' Opinions NATO Data Accuracy Increase NATO Defense NATO Expansion U.S. Troops in South Korea US Military Aid U.S. Military European Union Geopolitics Taiwan Conscription Japan Defense Spending Weapons Industrial Base Global Military Spending Budgeting Country-specific Military Spending Canada