What breed of horse usually competes in the Rolex or the World Equestrian Games?

I know there are many breeds that do compete, but there was one event that I was curious about that is in the WEG. The horses jump over 6 foot tall gates. what breed does this? Can any horse learn to do this, or is it a specific breed like the Hanoverian or a specific Warmblood? They were tall, but not built like a big horse, if that helps.What breed of horse usually competes in the Rolex or the World Equestrian Games?
yes, the usual breed would be a hotblooded horse usually mixed with a warmblooded horse to get a world class eventer. for example mixing the Thoroughbred with a Warmblood or a hanoverian to get a nice horse that's capable of both jumping, x country, and dressage. Some people use the plain breeds like just thoroughbreds, warmbloods, or hanoverians on their own. I'd say the most common mix is hanoverian and thoroughbred for jumping and for dressage its tb mixed with a warmblood such as maybe the danish warmblood. I think i've even seen a gelderland once competing but i'm not sure. any horse can learn to jump high. but depending on the breed shows the limitations that the horse can jump. i honestly think that TB's excell the most at WEG.