What leadership skills are especially important across country borders? How to manage effectively on the distance? How to prepare yourself to the work in multinational teams? The work shows a deep understanding of the complexity in international projects. Its scientific form corresponds to the clear concept of the paper. Multiple case studies illuminate intercultural misunderstandings and conflicts, as well as the phenomenon of cultural synergy. Both newcomers and the experienced project managers can find here valuable tips for improving their soft and intercultural skills.