Look out, everybody, because here come the unmanned aerial vehicles, otherwise known as UAVs or drones. They’ve been flourishing in the Iraq War, starting with just a few unarmed drones when the conflict began in 2003, and now growing in numbers to more than 7,000. Many are packing serious missiles and bombs, and some soon could be autonomous. This is undoubtedly the dawn of an entirely new era of military might: robot wars.

Flying over battlefields in a variety of shapes and sizes, the aircraft are controlled from either the battlefield itself, thousands of miles away, or anywhere in between. They can keep an eye on bad guys wherever they may roam, and some can even blow them up at a moment’s notice. One reason they’re so compelling for military types: They present no danger to their pilots. To help you recognize and identify these scary robotic birds, we picked out a representative sample of six of these these soulless, empty flyers for you to contemplate.