This timely e-book is based on the RADEX training course. Europe is facing and increased phenomena of violent radicalisation, extremism and nationalism is faced with increased phenomena of violent radicalisation, extremism and nationalism. Despite efforts by the European Commission and many Horizon and Erasmus+ projects, there is still a need to provide tailored support to young people who are at risk of being groomed into violent radicalised acts and speech. At this critical point, RJ4All International Institute brought together a strategic partnership from five Erasmus+ countries, the UK, France, Cyprus, Belgium, and Greece. RADEX exchanges its results at national and European levels, helping in this way to achieve the objectives of Erasmus+, the 2015 ‘Paris Declaration’, the EU strategy for combating radicalisation, and the Erasmus+ Inclusion and Diversity Strategy.