✔ 最佳答案
Immigration Department
passports and VISA should be arranged
Aviation Department
Any aircraft alighting on a state should be granted prior formal consent from the aviation department
National Defense Department
any unauthorized airborne vehicles trespassing the airspace of a state would be treated as an enemy vessel which is subject to hostile aggression
2012-05-02 12:02:38 補充:
認真我就輸了