In Sweden, almost any strip road is a runway that can be used by Swedish Air Force fighter planes.
Here’s an interesting video, shot during the last days of the SAAB Viggen in Swedish Air Force service. The footage, shot in 2004, shows the underground bunkers that can still be found all over Sweden, and the operations connected to a “war time practice”.
During the Cold War period, Sweden could not expect its 30 airbases to survive an attack for more than a few hours. For this reason, the 1,000 planes of the Swedish Air Force were prepared to operate from mini airbases and straight roads around them, that would allow aircraft to take off and recover.
In case of crisis or just for training goals, aircraft would move from standard airbases to strips dispersed and partly hidden in the woods.
JAS-37 Viggen shown in the video have been retired and replaced by the SAAB Gripen.
H/T to Robin Vleij for the heads-up