ISTANBUL - Turkey would not hesitate to shoot down military aircraft violating its air space, Prime Minister Ahmet Davutoglu said on Saturday, a day after the NATO member shot down an unidentified drone close to the border with Syria."We downed a drone yesterday. If it was a plane we'd do the same. Our rules of engagement are known. Whoever violates our borders, we will give them the necessary answer," Davutoglu told a rally of his ruling AK Party in the central city of Kayseri.