>>3958784 (prev)
>These planes are allowed 'Military' rating for some reason, even though they are civilian planes and that allows them to bypass customs and immigration checks.
I know between little and nothing about this subject matter, but your description fits The Red Cross PERFECTLY.
Remember their origins in WWI . . . immune to military protocol and able to move freely where ever they wanted, without submitting to the checks and inspections levied on anybody else