Top militaries like the US, China, and Russia are looking closely at how remote-controlled or even autonomous robot dogs can be used in combat.US Air Force photo by Senior Airman William PughMilitaries like the US, China, and Russia are building robot dogs to employ in security and combat operations.Some of these remote-controlled canines feature guns, rocket launchers, and flamethrowersThese robotic dogs can fill a variety of jobs, from scouting to counter-drone roles.Militaries, law enforcement, and more around the world are increasingly turning to robot dogs — which, if we're being honest, look like something straight out of a science-fiction nightmare — for a variety of missions ranging from security patrol to combat.Robot dogs first really came on the scene in the early 2000s with Boston Dynamics' "BigDog" design.