2015-06-13 RVNspotting has an interesting video showing some NATO jets taking off from EFRO.
Rovaniemi Airport (Finnish: Rovaniemen lentoasema) (IATA: RVN, ICAO: EFRO) is the fifth biggest airport in Finland by annual number of passengers (in 2012), located in Rovaniemi, Finland, about 10 kilometres (6 mi) north of Rovaniemi city centre.
The Arctic Circle crosses the runway closer to its northern end.
According to the posting:
One of Europe’s largest fighter jet exercises is underway in the Northern sky with more than 100 aircraft and 4000 people participating.
The ACE 2015 is organized by Norway, Finland and Sweden with participating forces from France, Germany, Netherlands, Switzerland, UK, USA and NATO.
The air exercise takes place in the High North, with the activity being divided between Bodø in Norway, Rovaniemi in Finland, and Kallax in Sweden.