7. No flesh would survive
In Matthew 24:22, Jesus Christ prophesied about the coming great tribulation "... except those days should be shortened, there should no flesh be saved ...." War on this scale would have been unthinkable in the first century. Even the worst of wars could not even come close to annihilating all life from the planet. But in our generation, all of that has changed. With our modern nuclear, biological, and chemical weapons, this could easily be done. The rider of the red horse in Revelation 6:4 takes "... peace from the earth, and that they should kill one another: and there was given unto him a great sword." The red horse is followed by the black horse of famine in verses 5-6. Scientists predict famine caused by reduced sunlight would follow a nuclear war, should one occur. So here we see another prophecy which is now set up to be fulfilled. It should also be noted that tremendous seismic and volcanic activity could produce results similar to that of nuclear weapons.