Sissel Lie, later Bratz, was the daughter of the first United Nations secretary-general, the Labour politician Trygve Lie.
During the Second World War she evacuated to the United Kingdom along with her family and her father, who at the time was the minister of supplies and later the foreign minister in the Norwegian government-in-exile.
On 24 July 1942 the government-in-exile introduced compulsory military service for all Norwegian women abroad, and Lie was enlisted in the Women’s Auxiliary Corps of the Norwegian Army on 5 August that year. She served at Maxwelton House in Scotland and was in one of the first three cohorts who trained there.
Lie transferred later on to a British Army Officer Cadet Training Unit (OCTU) and achieved the rank of second lieutenant in the control service. On 8 June 1944 she married the fighter pilot Gunnar Fosse, but already on 30 October he was shot down over Belgium. When the war was over, she chose to remain in Scotland for a few months until she was demobilized on 10 August 1945.
In the pictures that Sissel Lie collected in her albums, we see that she and a couple of her colleagues have camera bags hanging down from their shoulders. This was not a part of their uniform, but these women were passionate hobby photographers who documented the daily life within the Women’s Auxiliary Corps.