Largest communities north of the arctic circle are in Russia Norway Finland and Sweden: Murmansk (population 295,374) Norilisk (178018) Tromosø (75,638) Vorkuta (58,133) and Kiruna (22,841)
There could be a lot of factors that could be a hinder towards a successful escape and these factors may include: The barrier or shield in the facility in which this could be a problem if you don't have the clue of where you're getting out of, the tools that you are going to used can be also one of the problems because you won't know what more tools you need in order for escape and lastly, people you're with or the people who has also been held captive can be a factor because you won't know who to trust.
Assuming that you're talking about the Pacific War.
The battle that was fought in the most northern region would be the Autelian Island Campaign. The war zone was located on the northern part of the Pacific area
A one way mirror in front of the mystery writers, with the mirror facing the audience would work best.
