Combat vehicles are expected to be able to handle rough terrain. As this video by DARPA shows, combat vehicles of the future with Multi-mode Extreme Travel Suspension System can travel at a high speed on uneven terrain.
This particular vehicle has 20-inch wheels, an advanced short-travel suspension of 4 to 6 inches, and a high-travel suspension that extends up to 6 feet. Pretty rad if you ask us. More info is available on DARPA’s site.