Here are 2 RELEVANT LINKS about Robots and War
with videos that you might want to look at... The first has a look at one of the robots from Boston Dynamics
+ links to a TED talk about robots & war
from a couple of years back that looks down-the-road at where we are headed... https://plus.google.com/u/0/110811729614009320896/posts/QBAkijXz15K
The second includes links to things like the "DARPA humming bird robot video"... https://plus.google.com/u/0/110811729614009320896/posts/VrB6A8jDftT
To give you more context, think of this, the military doesn't invest in these technologies just for the heck of it, they see a future where some of these will be lethal to "enemies"... and from there, it's an arms race.