Main theme of partnership Building Activity ""Youth as main power of Sustainable development inEurope" is rising of European awareness and Urban/Rural development, specially focus on sustainable development.In this PBA will participate youth leaders and youth workers from 28 organisations from 15 countries. During six days in the small mountain town of Rudnik in western part of Serbia they will have an opportunity to raise their awareness about and discuss the philosophy related to Sustainable Development as a tool for fostering active participation of young people in sustainable development of urban/rural areas and in raising European awareness among these groups.With this PBA youth leaders and workers will make condition for youth, which will be involved in future project to increase their participation in sustainable development. Special attention during PBA will be put on developing future projects that will include youngsters with fewer opportunities.