"Given its role as a close U.S. ally and partner, developments in Spain and its relations with the United States are of continuing interest to the U.S. Congress. This report provides an overview and assessment of some of the main dimensions of these topics." These four topics include: " Domestic Political and Economic Issues. The government of Spain is led by Prime Minister Mariano Rajoy of the center-right Popular Party (PP). The PP won an absolute majority in the general election of November 2011. […]  Regional Issues. The Spanish government is firmly opposed to a long-standing independence movement in Catalonia, a region of northeast Spain that includes Barcelona. In November 2015, Spain's constitutional court blocked an attempt by the regional Catalan parliament to begin the process of forming an independent state. […]  Counterterrorism. The United States and Spain cooperate closely on counterterrorism issues. An estimated 50 to 100 Spanish citizens and approximately 1,200 Moroccan nationals with Spanish residency cards are thought to have joined jihadist groups fighting in Syria and Iraq. […]  U.S.-Spain Defense Relations. Spain plays an important role in U.S. defense strategy for Europe and Africa. Four U.S. destroyers equipped with the Aegis Ballistic Missile Defense system are stationed at the Rota naval base as part of the European Phased Adaptive Approach for missile defense in Europe. Additionally, Morón air base is the headquarters for a rapid reaction force of 2,200 U.S. Marines that protects U.S. interests and personnel in North Africa. […]  U.S.-Spain Economic Relations. Investment flows between the United States and Spain totaled nearly $80 billion in 2013, and the trade relationship totaled nearly $25 billion in 2014. Approximately 1,200 U.S. firms operate subsidiaries and branches in Spain."
CRS Report for Congress, R44298
Federation of American Scientists: http://www.fas.org/sgp/crs/index.html