Iran claims its air defense confronted two US drones during recent drill
Iran and the US have long engaged in a game of drone chicken as they monitor one another, and in some cases down the other's aircraft.
An undated U.S. Air Force handout photo of a RQ-4 Global Hawk unmanned aircraft(photo credit: U.S. AIR FORCE/BOBBI ZAPKA/HANDOUT/FILES VIA REUTERS)BySETH J. FRANTZMANUpdated:
