It sometimes happens that because loss of radio communication or because wrong frequency tuned in during ATC handover etc... a country has to send fighters to intercept an aircraft in its airspace. If such happens, does the airline have to pay a fine (presumably this would/should cover the expenses of the dispatched fighters)? What happens with the pilots who make this mistake?
Let's assume a European country, member of NATO and a commercial flight.
EDIT - 2018-12-17
It looks my country (Hungary) will be the first in the EU which will charge airines (actually based on the Hungarian Official Gazette they can charge anyone not just commercial flights) in this case. The amount itself is not defined, the Aviation Authority will be responsible for determining it (of course along with the military counterparty). Link for the Hungarian Official Gazette - in Hungarian