The situation is not new. A little island near to Norway, half is occupied by Soviets and half occupied by US. Both power use this island for submarine base.
The main character is a Delta Force member who stucked in the Soviet zone and join to the Resistance. I know the situation is old, but you can tell new stories in it. Have you any job for a Delta Force member equipped with Checz AK?
E.g. The resistance members are engineers and teachers and they can't execute three russian officers, but the professional can this... ;D