![Historian offers first deep dive into secret German-Soviet alliance that laid groundwork for WWII | News | Notre Dame News | University of Notre Dame Historian offers first deep dive into secret German-Soviet alliance that laid groundwork for WWII | News | Notre Dame News | University of Notre Dame](https://news.nd.edu/assets/435615/500x/guderian_and_krivoshein_feature.jpg)
Historian offers first deep dive into secret German-Soviet alliance that laid groundwork for WWII | News | Notre Dame News | University of Notre Dame
![Institute of National Remembrance on Twitter: "On 17 September 1939, Poland, fighting off the German invasion, found itselt under attack from the east as well: the USSR, in line with the secret Institute of National Remembrance on Twitter: "On 17 September 1939, Poland, fighting off the German invasion, found itselt under attack from the east as well: the USSR, in line with the secret](https://pbs.twimg.com/media/E_edUXHXEAQuVls.jpg)
Institute of National Remembrance on Twitter: "On 17 September 1939, Poland, fighting off the German invasion, found itselt under attack from the east as well: the USSR, in line with the secret
![What went wrong on Poland': Reconsidering the legacy of the Yalta Agreement - The National Archives blog What went wrong on Poland': Reconsidering the legacy of the Yalta Agreement - The National Archives blog](https://cdn.nationalarchives.gov.uk/blog/wp-content/uploads/2020/02/11112825/INF-14_447_1945-Photograph-of-Big-Three-at-Livadia-Palace-during-Yalta-Conference-4-February-1945.jpg)