The war is between the red and blue robot armies.

It seemed to take an eternity to finish off the entire robot army although they had spent no more than 15 minutes on the job.

Is it some communication channel of the robot army?

Or so he hopes; if the process fails, they'll bounce right back here again, to face the robot army.

You're responsible for the robot army that nearly destroyed this world!

But a far greater concern should be the effect on the decision making of the human leaders directing these robot armies.

She changed sides and helped the humans defeat the robot army.

The robot army would have continued their espionage with no interference.

As such, he attempts to organize a robot army.

He carried the control transmitter for the robot army under his arm.