Yes. Half the world would be reduced to rubble, and this "half" is likely to include Russia, the United States, Canada, Saudi Arabia, Qatar, United Arab Emirates, European Union, Ukraine, Belarus, Iran, Pakistan, Kazakhstan, DPRK, Syria, Egypt, South Korea, Japan(?)etc.
But the other half would escape the war unscathed. This half is likely to include China, India, Indonesia, Brazil, South Africa, Argentina, Nigeria.etc. Once the war is over, these countries will dominate the world.