A show of force by Iran's military a week after Washington accused Tehran of firing on a U.S. drone.<br/> <br />Iranian state television broadcast these images of fighter planes and bombers as the government announced it was lauching one of the largest air drills the country has ever conducted.<br/> <br />Some 8,000 elite and regular troops are expected to participate in the maneuvers which are taking place against a backdrop heightened tension between the U.S. and Iran over Tehran's nuclear program.<br/> <br />This is just one of a number of military simulations Iran has carried out this year --- the U.S. and Israel say they haven't ruled out the possibility of military action against Iran.
