In a far-off future war, an infantry platoon awaits a Russian assault.
The defending soldiers are in a fortified position on elevated ground or a reverse slope. They’ve arranged machine guns and anti-tank weapons to kill anything that comes into view. They’ve dug into the ground to help them survive the initial artillery barrage. To bolster their defenses even more, they’ve covered the area in front of them with mines.
If the Russian assault force was human, then it’d probably be too dangerous to go ahead with the attack. But it’s not. Over the horizon comes a mix of mostly-robotic vehicles — and the NATO troops don’t have much of a chance.