The Forgotten Appeasement of 1920 examines a turning point in East European history: the summer of 1920, when Lenin's Soviet Russia decided to challenge the Versailles system and launch a military attack on the continent.

Andrzej Nowak is Professor of East European History at the Jagiellonian University. His research focuses on Polish and Russian history and comparative studies of empires. He has published many books including a multivolume History of Poland, History and Geopolitics, and Metamorphoses of the Russian Empire: 1721-1921.