International Brigades monument In 1937, Cohen joined the
Mackenzie–Papineau Battalion and fought as a foreign national volunteer in the
Spanish Civil War, as did others who were sympathetic to the anti-Franco movement. He met
Amadeo Sabatini, a career Soviet spy who recruited him. After being injured, in November 1938 Cohen returned to the United States. He began serving Soviet foreign intelligence. (found to contain equipment and materials to aid the Cohens’ activities) In 1954, the Cohens moved to 45 Cranley Drive in
Ruislip,
Middlesex where they had numerous pieces of hidden equipment for espionage, and an antenna looping around their attic, used for their transmissions to Moscow. Their cover was as
antiquarian book dealers under the names of Peter and Helen Kroger working with KGB agent
Konon Molody who used the cover name Gordon Lonsdale.
Prisoner exchange In 1967, the Soviet Union admitted that the Cohens were spies. In July 1969, Britain
exchanged them for
Gerald Brooke, a British subject held in the Soviet Union, as well as Michael Parsons and Anthony Lorraine, the British subjects who in 1968 were sentenced by Soviet courts for smuggling drugs into the Soviet Union. Both the United States and the UK had conducted such exchanges before, such as Soviet spy
Rudolf Abel for
U2 pilot
Gary Powers, and Konon Molody for
Greville Wynne in 1964. But In this case, the opposition criticised
Harold Wilson's
Labour Government for agreeing to release dangerous Soviet agents, such as the Krogers (i.e., the Cohens), in exchange for Brooke, described as a propagandist. Opponents claimed that it set a dangerous precedent and was an example of blackmail rather than a fair exchange.
Moscow The Cohens lived in
Moscow, where Morris trained spies for the Soviets. He and Lona were later given pensions by the KGB, and remained in the city for the remainder of their lives. ==Personal life and death==