First the world faces hate filled deceptive propaganda from the rider on the first white horse. These facilitates control of vast populations that can be whipped up into a war frenzy. This leads easily into the second rider on a red horse war. The aftermath of war is food shortages. This leads to the third rider on a black horse signifying famine.
Starvation was a big factor in WWI as it will be in the future for this planet.
