Context: The Soviets also helped Germany to avoid British naval blockades by providing a submarine base, Basis Nord, in the northern Soviet Union near Murmansk. This also provided a refueling and maintenance location, and a takeoff point for raids and attacks on shipping. In addition, the Soviets provided Germany with access to the Northern Sea Route for both cargo ships and raiders (though only the commerce raider Komet used the route before the German invasion), which forced Britain to protect sea lanes in both the Atlantic and the Pacific.

Question: What did the Germans use to avoid British blockades?
Answer: a submarine base

Question: Where was the sub base located?
Answer: northern Soviet Union near Murmansk

Question: Which oceans did the sub base provide access to?
Answer: both the Atlantic and the Pacific

Question: What didn't the Germans use to avoid British blockades?
Answer: Unanswerable

Question: Where wasn't the sub base located?
Answer: Unanswerable

Question: Where was the plane base located?
Answer: Unanswerable

Question: Which oceans didn't the sub base provide access to?
Answer: Unanswerable

Question: Which oceans did the sub base restrict access to?
Answer: Unanswerable