Why isolationism is detrimental to America’s Heartland

The article highlights the critical importance of NATO and international alliances for U.S. security, emphasizing that these partnerships provide a crucial shield against global threats. It argues that isolationism would undermine the safety and stability that come from cooperative defense strategies, which have kept America's heartland secure. This matters because it suggests that turning inward could leave the U.S. vulnerable to emerging dangers, stressing the need for continued engagement with international allies to maintain national security.