America's armed forces have added some major tech to their arsenal lately, from smartphones for soldiers to giant surveillance blimps. And now, AAI has unveiled a new tool for battlefield commanders in the form of giant touchscreen tablet. Its screen is three feet by two feet and employs surveillance information to give those in charge an overhead view of a war zone that shows the position of both good guys and bad. Icons represent troops, air support, and spy drones, which are then deployed by tapping an