Biodiversity The aim of this youth exchange was to create a basis for placing a mountain near the city under protection. During the youth exchange, the ecological diversity was documented and made accessible to the general public via the INaturalist website. Pupils learnt about the mountain and its beauty as part of a project day, and politicians and representatives of civil society were invited to an event on the mountain with the youth exchange participants. Participation & social commitment Before and during the youth exchange, the participants developed a campaign for the protection of the mountain, supported by experts. campaign to protect the mountain, which includes various aspects. This included the development of a strategy public relations strategy, which is launched during the youth exchange, the technical discussion of biodiversity, nature conservation biodiversity, nature conservation, nature conservation law and the different interests of mountain users and residents. An important part of this campaign is direct dialogue with representatives from politics and civil society. Intercultural exchange and international understanding The participants from Germany and Austria got to know Serbia, a country that was new to them. During the youth encounter they got to know Serbia from a variety of perspectives and in different ways, e.g. during the evening with a Serbian host, during discussions with local politicians and during the workshop with the Serbian students. She deals with Serbian history and culture together. At the same time, in the sense of intercultural learning, it is also about exchanging ideas with one another and recognizing parallels and differences. An important point on the program was the discussion of our shared history In this way, we should also address and understand that such a project is also a contribution to international understanding and peace in Europe. It is important to remember and communicate to the outside world that it is an achievement that young people from Serbia, Germany and Austria are meeting to work together for a sustainable future. The bombing and extensive destruction of the city center of Gornij Milanovac by the German Wehrmacht in World War II, which had previously been carried out by the Austrians, was also discussed was planned and shaped by architects. In this context, it was also discussed how much the development in the Balkans was influenced by Austria.