The unit made a significant contribution to the defense of Finnish Lapland, from January 7, 1940, with 12 Gloster Gladiator II fighters, five Hawker Hart bombers, and eight other planes. In total, the unit destroyed twelve Soviet aircraft (eight in the air, four on the ground), and lost a total of six planes; two to enemy action and four to accidents. Three of its pilots were killed and two more were captured by Soviet forces. The captives were returned to Sweden five months after the end of the war.