BOPA was a Danish resistance group in Copenhagen during WW II. The group was associated with the communists.

BOPA fought the German Wermacht in Denmark. The group was founded in 1942 by Danish communists og former Spain Volunteers under the name KOPA meaning Communist Partisans.

Later on, a lot of non-communists joined the group, especially students, and therefore, the group changed its name to BOPA or "Borgerlige Partisaner", which can be translated into "Civil Partisans".

At the end of the war, BOPA had 150 members in total although they lost 38 members during the war. Those members were either executed by the Germans or died during sabotage actions.

BOPA was a smaller group than, for instance, Holger Danske, but instead of handling "informer killings" like Holger Danske did, they specifically worked with sabotage actions. They performed several hundred actions - one of the biggest was the Langebro Blast. The actions were very organized and caused damage for millions of DKK.

Besides sabotage, the BOPA members smuggled weapons and performed huge weapon thefts. They are also known for performing 20 "informer killings".

For secrurity reasons, BOPA consisted of multiple small groups of 6-7 members. Then, if one group was taken by the Gestapo, they could not tell on the other groups or members, since they did not know anything of them. This made it possible for BOPA as an organisation to continue their work even if some of the members were captured.

BOPA had a lot of helpers that weren't a part of the groups. They made false identification papers and hid some of the resistance members in their homes.

BOPA was dissolved in August 1945.