In the post-war era, when European countries suffered consequences of the conflicts that lasted for the past 5 years, Yugoslavia started the restoration of its country. It was determined that to achieve an increase in production and demand for goods they needed to mobilize young working force which would enable fast construction of factories, homes, railroads and roads. This was Yugoslavian youth which worked on many youth work actions from 1946 to 1952 and after that period. The first work action began in 1946 by building a railroad which connects Brčko and Banovići in Bosnia and Herzegovina. The action lasted for a little less than a year and had young participants from all over the world. The next work action started in 1947 and involved building a railroad that connected Šamac and Sarajevo. Instead of just connecting Bosnia and Herzegovina with the rest of Yugoslavia, this railroad enabled the country's economic development. The last action of the first era of ORA resulted in the highway between Zagreb and Beograd, which was a part of highway network called Bratstvo i jedinstvo. The year 1958 marked the beginning of the second phase of the construction of this highway network. The proof for the importance of these actions lies in their popularity, they were written about in both domestic and foreign newspapers and the news about the constructions was reported different media all around the world. Even though half a million young boys and girls exchanged their high school and college lives for hard physical labour and occasional leisure time, the new infrastructure they built also built a new structure of Yugoslav society.