Vietnam is a different case. The place was full of tropical forest. They had also dug tons of caves and tunnels. They had no tank.While there is some truth in the assertion that airpower reigns supreme precedent and war history puts big conditionals on the same. The Viet Cong survived massive American bombardment which was a scorched earth policy. The first war in Chechnya, ISIS's lightning offensives and numerous liberation fighters the world over have turned the tide of war without even a primitive airforce. The Taliban of Afghanistan have survived 15 years of Nato backed aerial and ground operations at its best but are paradoxically stronger than ever before and holding more territory with each passing day.