This is an Accepted Manuscript of an article published by Taylor & Francis in Intelligence and national Security on 6 February 2018, available online: https://doi.org/10.1080/02684527.2018.1434449 Rubén Arcos & José-Miguel Palacios (2018) The impact of intelligence on decision-making: the EU and the Arab Spring, Intelligence and National Security, 33:5, 737-754, DOI: 10.1080/02684527.2018.1434449 The impact of intelligence on decision-making: the EU and the Arab Spring Rubén Arcos a * and José-Miguel Palacios b a Universidad Rey Juan Carlos, Madrid, Spain; b Universidad de Zaragoza, Spain * ruben.arcos@urjc.es Dr. Rubén Arcos, Ph.D., is lecturer and researcher of communication sciences at Rey Juan Carlos University in Madrid, Spain. He also serves as Deputy Director of the Centre for Intelligence Services and Democratic Systems (established by a collaboration agreement between the Spanish National Intelligence Centre and URJC), and coordinating director of the Inter-University Master’s program in Intelligence Analysis. He is founding co-director of the International Intelligence Hub and the founder and chapter chair of Strategic and Competitive Intelligence Professionals (SCIP) for Spain. Arcos is deputy editor of The International Journal of Intelligence, Security, and Public Affairs. http://orcid.org/0000-0002-9665-5874 Dr. José-Miguel Palacios, Ph.D., was between 2011 and 2015 Head of the Analysis Division in the EU Intelligence Analysis Centre (EU INTCEN) of the European External Action Service in Brussels. He joined the EU Situation Centre (renamed EU INTCEN in 2012) in 2006 as an analyst, after having worked for the Spanish government since 1986 in several analytical roles. Currently he is an independent lecturer in European Affairs, Intelligence Studies and Conflict Management, and an Extraordinary Collaborator at the University of Zaragoza (Spain). He holds a PhD in Political Science. http://orcid.org/0000-0001-9799-0781