Frenzland declares no-fly zone over... Frenzland.

Our Great Leader declares that Hippostanian aircraft are disrupting the ecology of Frenzland; Cuts off all Hippostanian flights to or from Frenzland.

Mr. Fullhinger stated that Hippostanian aircraft polluted the air over Frenzland to a far greater extent than any other international airlines.
This is sure to harm Frenzland's economy - But The Great Leader stated that the Environmental problems caused by the polluting airlines would be far more damaging to the nation than any defecit due to grounded flights.

Here is an excerpt from his speech:
"Foreign airliners are the biggest problem in Frenzland. Some of them are particularly troublesome. They breathe toxic fumes into the air we breathe, they poison the land. They invade our country and slowly choke us to death.
I say some, for certain countries are respectful and do their best to limit their impact on Frenzland's environment. However, we must demand these significant others to put more effort into fixing the problem, or else we cut off any future flights for that airline.
We must be strong and unmoved in the face of conflict: We will refuse to back down while airlines destroy our land."

His first action in this regard was to cancel all flights from Hippostanian airlines, stating that these were the greatest offenders in terms of pollution, and that by doing so he would set an example to the other nations, that Frenzland would not allow any further pollution just for the sake of extra revenue.