Jewish Bolshevism, Judeo-Bolshevism, and known as Żydokomuna in Poland, is an antisemitic stereotype based on the claim that Jews have been the driving force behind or are disproportionately involved in the modern Communist movement, or sometimes more specifically Russian Bolshevism.

The expression was the title of a pamphlet, The Jewish Bolshevism, and became current after the 1917 October Revolution in Russia, featuring prominently in the propaganda of the anti-communist "White" forces during the Russian Civil War. It spread worldwide in the 1920s with the publication and circulation of The Protocols of the Elders of Zion. It made an issue out of the Jewishness of some leading Bolsheviks (most notably Leon Trotsky) during and after the October Revolution. Daniel Pipes says that "primarily through the Protocols of the Elders of Zion, the Whites spread these charges to an international audience."James Webb wrote that it is rare to find an antisemitic source after 1917 that ..."does not stand in debt to the White Russian analysis of the Revolution."

Sir Winston Leonard Spencer-Churchill, KG, OM, CH, TD, PC, DL, FRS, Hon. RA (30 November 1874 – 24 January 1965) was a British Conservative politician and statesman known for his leadership of the United Kingdom during the Second World War. Widely regarded as one of the greatest wartime leaders of the century, he served as Prime Minister twice (1940–45 and 1951–55). A noted statesman and orator, Churchill was also an officer in the British Army, a historian, a writer, and an artist. He is the only British prime minister to have received the Nobel Prize in Literature, and was the first person to be made an Honorary Citizen of the United States.

Churchill was born into the aristocratic family of the Dukes of Marlborough. His father, Lord Randolph Churchill, was a charismatic politician who served as Chancellor of the Exchequer; his mother, Jenny Jerome, was an American socialite. As a young army officer, he saw action in British India, the Sudan, and the Second Boer War. He gained fame as a war correspondent and wrote books about his campaigns.