2. Afghanistan vs. Soviet Union
In December 1979, the Soviet Union invaded Afghanistan to support the faltering communist government. Despite deploying over 100,000 troops, Soviet forces faced fierce resistance from Afghan mujahideen fighters who utilized guerrilla tactics and intimate knowledge of the terrain. The prolonged conflict drained Soviet resources and morale, contributing to the broader decline of the USSR. The U.S. and other nations provided support to the Afghan resistance, further complicating the Soviet military’s efforts. (britannica.com)
