In the Book of Revelation, it speaks about the armies who come up against Israel in the latter days, as riding horses. It also says how the blood will be up to the horse’s bridles during this war. I often wondered about this because of the military use of tanks, etc., but, now it makes sense.
Tanks and armored personnel carriers are the modern horses and chariots
After hell on Earth breaks out, there may not be fuel to run tanks, so it may well be horses.