Northrop Grumman B-21 Raider
It’s impossible not to include the B-21 Raider in this list. The Air Force wanted a modern Long-Range Strike Bomber, so Northrup Grumman started developing this bad boy. While this aircraft will be crewed, it will be a stealth drone bomber capable of flying at high altitudes. Those who oversee its development explained that they want a pilot operating the controls as the aircraft will probably be used for delivering nuclear payloads.
BigDog Military Robot
Now owned by Google, Boston Dynamics created the BigDog since they wanted to build a force multiplier. This robot can cross various types of terrain without falling over, which is basically its party trick. It can run across sand, snow, desert, and forest without difficulty! This makes the BigDog ideal for delivering supplies and equipment to soldiers in dangerous places for humans and which helicopters can’t reach.