Being almost 1,500 kilometres from the Iranian fighters at Shahrokhi Air Base, H-3 was out of range and if choosing a direct route, the Iranian aircraft would have had to fly over Baghdad and perform aerial refueling twice in Iraqi airspace, including once near Baghdad, which was heavily fortified by Iraqi air defence sites.A team of IRIAF commanders (including Col. Ghasem Golchin, Col. Bahram Hooshyar and Col. Fereydoun Izadseta) planned a more sophisticated, surprise operation instead. Senior Persian military officials had determined that Iraqi Air Force activity was lower in northern Iraq, so a plan was made to approach the Iraqi sites from that direction. To increase their chances, the Persian commanders decided to fly their aircraft to Urmia Lake first and refuel in the air, and then from there they would have a “clean” route passing over the mountains of northern Iraqi–Turkish border, while keeping the altitude at less than 300 ft (100 m) to avoid Iraqi and Turkish radars.