Personally I see the biggest problem being the route to Finland for these troops. And yes, the political and strategical reasons for creating and sending these troops

Norway and Sweden for political reasons would not let them through. If they did, the USSR might consider them as hostile nations and might prepare itself attacking them.

Also the iron ores in northern Sweden might be the objective to these troops, and once there would not have further instructions to move to Finnish territory, which would lead to the Germans attacking Sweden.

Finland seemed doomed : Our old ally Germany does not help instead suggests giving up to the Soviet demands all the way. The Western Allied are too far, and probably would not even send the troops to Finland but Northern Sweden.

If these units could be sent to Finland it would require quite fast action, they should be usable in one month or less. Otherwise they might not be needed at all.

The interesting point would be the following political consequences, would there be a declaration of war between these nations?

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