In fact, the US miltary doesn't have any liquid-fueled rocket engines of any type unless perhaps you count the very small engines that refine the trajectory of

In fact, the US miltary doesn't have any liquid-fueled rocket engines of any type unless perhaps you count the very small engines that refine the trajectory of a MIRV bus after the end of the boost phase of an ICBM or SLBM. And liquid-fueled rockets are all SpaceX knows.