 Communist figures including Vittorio Vidali ("Comandante Contreras"), Iosif Grigulevich, Mikhail Koltsov and, most prominently, Aleksandr Mikhailovich Orlov led operations that included the murders of Catalan anti-Stalinist Communist politician Andrés Nin, the socialist journalist Mark Rein, and the independent left-wing activist José Robles.Another NKVD-led operation was the shooting down (in December 1936) of the French aircraft in which the delegate of the International Committee of the Red Cross (ICRC), Georges Henny, carried extensive documentation on the Paracuellos massacres to France.Unlike the United States and major Latin American governments, such as the ABC nations and Peru, Mexico supported the Republicans.