Which operation was this military offensive, which put an end to the conflicts between Lithuanian and Polish units known as Dubingiai massacre, a part of?
Dubingiai massacre: The Dubingiai massacre was a mass murder of 20–27 Lithuanian civilians in the town of Dubingiai (Dubinki) on 23 June 1944. Dubingiai massacre:  Further conflicts between Lithuanian and Polish units were prevented by the Soviet capture of Vilnius in mid-July.
i don't know