Iran has launched military drills across half the country, and warned it would act as a manifest against aggressors less than a week after Washington accused Iranian warplanes of firing on a U.S. drone. Iranian media reported the maneuvers are taking place this week across 850 thousand square kilometers of Iran’s northeast, east, and southeast regions. About 8,000 elite and regular army troops will participate, while missile, artillery and surveillance systems will be tested. The maneuvers will also involve the biggest air drills the country has ever held. The exercise is to last for seven days.