(b) These forces would form a potential threat to Murmansk, the only Soviet ice-free port outside the Baltic, Black Sea and the Pacific. (c) A concentration in Northern Norway would also form a potential reinforcement for Finalnd if military co-operation between Germany and Finland should eventuate. (d) The Germans may wish to complete their garrisoning of Northern Norway to prevent a recurrence of anything in the nature of the Lofoten raid, and the escape of Norwegian volunteers to the United Kingdom.