John Hilly wrote:Actually German troops didn't stay in Finland, but were transferred to Norway, and vise-versa.
They had some depots in Pori and Bothnian harbors, but these Garrisons were no way fighting units...
I wonder where that false opinion has grown?
I don't think there are any "false opinions" here, when we look at it from "The Big Boys' angle of view", who were conducting this dialogue.
"The transit traffic and its arrangements opened an opportunity for the Germans to covertly increase their military connections with Finland and to bring more of their troops on the border of the Soviet Union, should this become topical. With this in mind they built a network of logistics bases through Northern Finland, with resources sufficient for more, if necessary, than just for the needs of the transit traffic that was fairly small in scope. A total of 30 000 German soldiers were transferred via Finland to Norway from September 1940 to May 1941." - The History of the Continuation War, Volume 1.
Regarding the secret protocol of the Molotov-Ribbentrop Pact and its agreed-upon spheres of interest, the decisive point was that as Finland was agreed to belong to the USSR sphere, thus in principle basically anyone wearing a German uniform was in the wrong place if he appeared in Finland, in terms of the M-R Pact.
Therefore the USSR insisted that the German troops are "immediately withdrawn from Finland, which, under the compact of 1939, belongs to the Soviet Union's sphere of influence", regardless whether they were fighting units or depot personnel. And it was very simple for the Soviet intelligence to verify whether the German presence ended or whether it continued, as it did all the time until the break-out of the war.