As another example, in 2007, an Israeli attack on a suspected Syrian nuclear site during Operation Outside the Box (or Operation Orchard) used electronic warfare systems to disrupt Syrian air defenses while Israeli jets crossed much of Syria, bombed their targets, and returned to Israel undeterred. The target of the flight of 10 F-15 aircraft was a suspected nuclear reactor under construction near the Euphrates River modeled after a North Korean reactor and supposedly financed with Iranian assistance. Some reports say Israeli EW systems deactivated all of Syria's air defense systems for the entire period of the raid, infiltrating the country, bombing their target and escaping.