I started gaining interest in Yugoslav youth labour actions (omladinske radne akcije) badges recently and I couldn't find any thread related to the subject so I decided to create one. I will post examples from my collection and I'll try to give some information if possible.
First and foremost, the badge Youth Railway 1946 (Omladinska pruga 1946) of the first post-war youth labour action in Yugoslavia. It is said that 62.268 people, mainly youth volunteers, built 90km of railway from May 1st