After the German invasion of Norway on 9 April 1940 the battalion was once more mobilized, the soldiers making their way to Alta by boats or reindeer sleds, then being transported to the front area by the Hurtigruten steamships "Dronning Maud" and "Kong Haakon", and the cargo ship "Senja". The battalion departed the pier in Alta on 19 April 1940 and arrived at Sjøvegan on 21 April.