Trotsky's assassination in Coyoacan, Mexico, on 21 August 1940, including the 24 May 1940 Siqueiros raid, the NKVD penetration of the Coyoacan household, the Ramon Mercader operation, and the long preparation of Stalin's order

What this dot point is asking

NESA expects you to outline the circumstances of Trotsky's August 1940 assassination and to understand its significance as the culmination of the Stalin regime's twelve-year campaign against the exile leader. Strong answers integrate the Coyoacan household, the May 1940 Siqueiros raid, the parallel Mercader operation, the ice axe attack, and the long Soviet preparation.

The answer

The Coyoacan household

In April 1939 Trotsky moved from the Blue House (Casa Azul) of Diego Rivera and Frida Kahlo to a separate fortified residence on Avenida Viena, Coyoacan, Mexico City. The move followed a political break with Rivera (over Rivera's 1938 support for the Andre Breton-Trotsky surrealist manifesto in Mexican Trotskyist politics). The Avenida Viena house was protected by watch towers, a 4-metre wall, a steel front door, internal locked doors, and a personal guard of American Trotskyists (Joe Hansen, Charles Cornell, Harold Robins) and Mexican police.

The household routinely contained Trotsky, Natalia Sedova, secretaries (including Sara Weber, Marguerite Rosmer), the personal guard, and a rotating cast of American and European visitors. The Mexican police presence reflected the asylum agreement with the Cardenas government.

Operation Duck

Stalin's order to kill Trotsky had been given in 1939, after the failure of earlier NKVD efforts (the Klement and Sedov deaths). The operation was codenamed Operation Duck (Operatsia Utka) and was directed from Moscow by Pavel Sudoplatov, deputy chief of the NKVD's foreign intelligence directorate. Naum Eitingon was the operational chief in Mexico.

The Mexican operation ran on two parallel tracks. The first was an "Anglo-American" track using Siqueiros and Mexican Communist Party assistance. The second was a single-agent penetration of the household using Ramon Mercader del Rio.

The Siqueiros raid (24 May 1940)

David Alfaro Siqueiros, the Mexican muralist and Spanish Civil War veteran, led a group of some 20 men (mostly Mexican Communists and Spanish Civil War veterans) in a direct assault on the Avenida Viena house in the early hours of 24 May 1940. The group forced the gate (with police uniforms and false identification of a Mexican Communist Party Pacheco), entered the courtyard, and fired some 200 rounds into Trotsky's bedroom. Trotsky and Natalia Sedova survived by rolling under the bed.

The Trotsky guard Robert Sheldon Harte was abducted in the raid. His body was discovered weeks later buried under a kitchen floor in a remote house in the Desierto de los Leones; he had been killed shortly after the raid. Trotsky personally suspected Harte of complicity; the SWP and Sedova denied it; Sudoplatov's 1990s memoir Special Tasks (1994) confirmed Harte was a witting participant in the operation.

Mercader recruitment

Ramon Mercader del Rio (1913-1978) was a Spanish Communist whose mother Caridad Mercader was an NKVD agent. He fought in the Spanish Civil War as a Republican officer; the NKVD recruited him through Caridad in Paris in 1937. Mercader was trained for the Trotsky operation from 1938.

Mercader approached the Brooklyn-born Trotskyist Sylvia Ageloff in Paris in summer 1938 under the false identity "Jacques Mornard," a Belgian aristocrat's son with a passport-business cover story. The relationship lasted into 1939; in late 1939 Mercader joined Ageloff in New York. He travelled to Mexico City in October 1939 with a (forged) Canadian passport in the name "Frank Jacson" (with a misspelling of the dead Canadian volunteer "Tony Jackson's" name).

Mercader/Jacson approached the Trotsky household through Sylvia Ageloff and the New York SWP. He visited the house from May 1940 on, ostensibly to receive Trotsky's review of a draft article on the dissident-French question. His access was through Marguerite Rosmer's circle and the Trotsky family's general kindness to younger comrades.

The ice axe attack (20 August 1940)

On the afternoon of 20 August 1940 Mercader visited the Coyoacan house carrying a typed draft article. He had concealed under his raincoat a shortened ice axe (in Russian: ledorub; in English the literature varies between "ice axe" and "ice pick"), a 12-inch dagger, and a Star pistol. He went into Trotsky's study with the article. Trotsky sat at his desk and began to read. Mercader walked behind him and brought the ice axe down on the back of Trotsky's head.

The blow did not kill instantly. Trotsky shouted, rose, and grappled with Mercader. The guards reached the study within seconds. They beat Mercader unconscious before Trotsky stopped them: he wanted the assassin alive for interrogation.

Trotsky was carried to the Hospital de la Cruz Verde, then to the Cruz Roja, then to the Hospital de la Cruz Verde de la Sociedad. He underwent emergency neurosurgery but did not regain full consciousness. He died at 7:25 PM on 21 August 1940, aged 60. Natalia Sedova, the household, and Joe Hansen were with him at the end.

His last recorded statement, given to Joe Hansen in Spanish on the way to hospital, was: "Tell our friends... I am sure of the victory of the Fourth International. Go forward!"

Mercader trial and aftermath

Mercader was tried in Mexico for premeditated murder. He refused to identify himself under his real name or his NKVD employment. He was convicted in 1943 and sentenced to 20 years' imprisonment, the maximum under Mexican law. He served the full sentence at the Palacio de Lecumberri.

On his release in May 1960 Mercader went to Cuba and then to the Soviet Union, where he was awarded the Hero of the Soviet Union and the Order of Lenin in a private ceremony on 31 May 1960. The Soviet press did not acknowledge the assassination. Mercader lived in Moscow and Havana until his death in 1978. He is buried at Kuntsevo Cemetery in Moscow under the false name "Ramon Ivanovich Lopez."

Pavel Sudoplatov was arrested in 1953 after Beria's fall, served fifteen years, and gave the first KGB-side account of Operation Duck in his 1994 memoir Special Tasks.

How to read a source on this topic

Joe Hansen's contemporary account in Fourth International (October 1940 and later issues) and Natalia Sedova's letters of 1940-1942 are the participant record. The Mexican police case file (the "Caso Trotsky") is held in the Archivo General de la Nacion.

Sudoplatov's Special Tasks (1994) is the major KGB-side source. Patenaude's Trotsky: Downfall of a Revolutionary (2009) reconstructs the assassination from both sides. Service's Trotsky (2009) gives a sceptical-leaning narrative.

Common exam traps

"Ice pick" versus "ice axe." The weapon was a sawn-down mountaineer's ice axe (a ledorub), not the small kitchen ice pick of some early accounts.

Forgetting Siqueiros. The 24 May 1940 raid is part of the operation and is the reason the house was on high alert.

Misdating the death. The attack was 20 August 1940; the death was at 7:25 PM on 21 August 1940.

In one sentence

Trotsky was assassinated at his fortified Coyoacan residence on Avenida Viena, Mexico City, by Ramon Mercader del Rio (Jacques Mornard, Frank Jacson), a Spanish Communist NKVD agent operating under the Sudoplatov-Eitingon Operation Duck, after a failed 24 May 1940 raid by David Alfaro Siqueiros, dying on 21 August 1940 at the age of 60 with a final message to his Fourth International followers.