Author Lars Gyllenhaal tells Radio Sweden that he has used American archives to find details on hundreds of unknown soldiers and sailors, whose numbers dwarf the around 200 Swedes who fought in German uniforms.
"Allied Swedes have, so to say, been in the shadows because during recent years there's been a lot of attention about the Swedes on the other side," Lars Gyllenhaal tells Radio Sweden.
Sweden had a policy of remaining neutral during World War 2 though that did not stop thousands from volunteering or fighting during the conflict.
Ravensbrück Nazi camp survivor archive to go online4:12 min 4:12 min
Sweden marks 70th anniversary of World War II end5:00 min 5:00 min
Astrid Lindgren’s take on World War II7:27 min 7:27 min