If a person were to own a private plane, could that person just fly from an uncontrolled airport to another uncontrolled airport in another country, assuming that the pilot makes no flight plan and flies VFR? Or, would authorities, provided the destination country had the resources to detect and intercept the plane in the air or at the destination airport, intercept and destroy, intercept and require identification (and all the information required), or go through some other procedure? Obviously this is dependent on the destination and departing countries, so for simplicity assume two nations with relatively tight security, such as the US and the UK.What is the name of your state (only U.S. law)?