Initially, the 2nd Line were intended as reserve units to allow the 1st Line to go on service, but the 1/1st Company appears to have remained in the coastal defences, so in November 1916 the 2/1st Dundee Company was redesignated as a Field Company, RE, and assigned to 71st Division.
The force at Murmansk defended the ice-free port facilities and the Murmansk-Petrograd railway as far as Kem on the White Sea, against the threat of attacks by German and Finnish White Guard forces in the closing months of World War II.