You might have been unaware that the U.S. Department of Energy, which houses the National Ignition Facility, primarily used this facility for weapons development. They have been responsible for creating some impressive stuff over time. There are some weapons as well as vehicles/planes that are top secret due to their quality, so we actually cannot tell you any specifics. However, we can tell you that the U.S. Armed Forces often gets stuff done in a big way primarily due to proper weapons research and development. Nuclear fusion will not only aid them in developing stuff, but countries will likely use fusion within their weapons eventually. In fact, there are some things fusion could help us make that were once only ever possible in science fiction material.