They are already equipped, all over America

US Army hopes to outfit soldiers with tiny drones by 2018

That tiny bird is a been there, done that for thousands of RC hobbyists. They do drones as well as any other defense contractor, they just do not understand procurement, Dollar Tree is not that expensive, and the electronics sell all over the internet, for cheap.

I do not know how this turns out. It seems to me soldiers will be constantly bothered by pesky mechanical mosquitoes. And they have no idea where they come from since it is battle and the press, the hobbyists, the NGO, and every gang from everywhere will have their cheap drone flying around. Like in the straits, how does the UK Navy know if a drone is NBC, IRG? Or if it  a few goofball sailors with access to foam boards. 

This stuff be everywhere, I just got an electrical connector, complete my $75 electronic parts list, and I have two Dollar Tree drones, looking at some GPS. These drones are made completely of these materials:

foam board,  short cwooden dowels, popsicle sticks, white glue, rubber bands, scotch tape. Plus a set of electronics as above.

Consider aerial combat, who want to go up against drones? I have seen a hobbyist video of his RC plane doing 400 MPH. The plane is four square feet, has about 20 grand invested. The opposition can put up 20 of these, any small group of human fighter pilots would be overwhelmed, the drones are suicidal. Like all those F22s Trump sent over, just in case.  Send in the foam boards, small explosions. The F22 have to go home to a palace and rest, foam board airplanes with a pound of electronics can be carried around. It is nearly impossible to defend against, production costs are so low.