The Art of Negotiating, born from the need to analyze nationalist trends in each of the partner countries, and then create, share and expose a series of resources and social skills that can be understood and used by each of the participants, countries and entities adhering to the exchange, especially when creating a structured dialogue and a feeling of European citizenship. Therefore, the general objectives of this exchange are: 1- Accept the different in all its expressions and get rich from living with it. 2- Create a feeling of European citizenship, understanding of the functionality of the U.E., its organs and a critical spirit with respect to extreme political ideologies. 3- Know the different European mobility programs that make it possible to eradicate attitudes of xenophobia and discrimination, in order to develop certain social conflict resolution skills. 4 - Analyze and understand the concept of radical nationalism, and related terminology, to be aware of its pros and cons. 5- Share, create and inform about tools and structures of dialogue and citizen participation that allow more democratic opportunities for all. These objectives are in accordance with the priorities of the Erasmus + 2020 program, such as: - support cooperation and the necessary reforms in education, training and youth systems; - promote diversity, intercultural and interreligious dialogue, common values of freedom, tolerance and respect for human rights; - Improving the means of literacy, critical thinking and sense of initiative of young people. Once again, the need for a cultural exchange of young people that responds to the objectives set, has to do with the current situation of many European countries that have some nationalist and / or independence movement. Spain is not a special case within Europe: in Spain, Catalonia represents the present of these types of movements, but there are historical cases of independence such as those in the Basque Country and Galicia. In the case of the Italian partner, in his Veneto region, in the northwest of the peninsula, and in Lombardy there are political parties that advocate a decentralization of the Republic and the recognition of a certain autonomy. In the case of our Greek partner, the case of Macedonia, an ancient Greek region that, since less than a year, and an indefinable season of negotiations with Greece, is recognized by NATO under the name of “Former Republic of Macedonia from North". It is striking that nationalist movements themselves, in many cases, are related to historical disputes, as in the case of the Greek independence movements against the Ottoman Empire since the fifteenth century. In this sense, it is interesting to remember a little what has happened in Turkey since the 1980s: Kurdish nationalists demand Kurdistan's recognition for the good of 30 million people living between Syria, Iraq, Iran and Armenia. No less relevant is the case of the Czech Republic, where, after the “velvet divorce” with Slovakia, a few fringes remained to be resolved. And finally with respect to the partners participating in the exchange, but not last among the cases of nationalism in Europe, we must know the reality of our Romanian partner and its problem in transylvania: the question of Hungarians or székely is treated as a internal matter and does not know from outside the country. Once the Ceaucescu dictatorship was over, the Hungarian minority was able to create a democratic party for the conservation and recognition of their language and culture. From this brief and detailed description of the situation both in the Mediterranean and in the Balkans on the subject of nationalism or separatism of some kind, it can be concluded that throughout the history of Europe, nationalist feelings arise in a context in which history, language and economy are mixed, seeking the infinite need to have "an enemy." An idea not compatible with the European Union that was made to facilitate contacts between peoples and peace between states - apart from free trade. It follows that today the balance and even the existence of the U.E. it is threatened by the rising nationalist wave established in most of the countries of the European and neighboring community, giving wings to xenophobic, authoritarian, racist movements, etc. that prevent the feeling of European citizenship that promote this type of European youth mobility programs such as Erasmus + can continue to be carried out with increasing normality. A stronger, more democratic European community needs to be built and where opportunities for its citizens are a reality of prosperity