The Enemy Activities Investigation Service (SIAE) (Spanish: Servicio de Investigación de las Actividades Enemigas)[a][b] was a unit of the National Police of the Republic of Cuba during World War II dedicated to the investigation and hunting of Nazis, Abwehr agents, their allies in Spanish intelligence, and Imperial Japanese spies in the territory of Cuba.
[3] The Chief of the National Police of Cuba at this time was Manuel Benitez Valdés, who was sometimes confused to be the Director of the SIAE.
[1] The Office of Strategic Services Liaison to SIAE at the beginning of the war was Ian Maxwell.
[4][5][6] Lüning was arrested by the SIAE and interred at the Princes Castle.
[2] He was the only German spy executed on espionage charges in all of Latin America during World War II.