What was a significant outcome of NATO's formation?

The establishment of NATO in 1949 marked a pivotal moment in international relations, particularly in the context of the Cold War. By forming a military alliance among North American and European countries, NATO created a collective defense mechanism. This means that member states committed to mutual defense, signifying that an attack on one member would be considered an attack on all. This united front served as a counterbalance to the military capabilities and influence of the Soviet Union, thereby acting as a deterrent against potential military aggression. The principle of collective defense helped to solidify alliances and foster a greater sense of security among member nations, contributing to stability during a period marked by intense geopolitical rivalry.