United States on the brink

I. British Blockade against Germany

II. Submarine Warfare

A. The Lusitania, 7 May 1915

B. The “Sussex Pledge”

III. Zimmerman Telegram—19 Jan 1917

February Revolution

I. Provisional Governments

A. Commitment to the War

II. Lenin and the Bolsheviks

A. “April Theses”

B. “Peace, Bread, Land, Worker’s Control”

October Revolution

I. “Decree on Peace”

II. December Armistice

III. Treaty of Brest-Litovsk

IV. Civil War and Foreign Intervention