Fall Weiss
Strategic plan for Nazi Germany's invasion of Poland

Fall Weiss ("Case White", "Plan White"; German spelling Fall Weiß) was the German strategic plan for the invasion of Poland. The German military High Command finalized its operational orders on 15 June 1939 and the invasion commenced on 1 September, precipitating World War II.
01Background
The origins of the plan went back to 1928, when Werner von Fritsch started working on it. Fall Weiss was developed primarily by Günther Blumentritt and Erich von Manstein while the two were serving as staff officers under General Gerd von Rundstedt with Army Group South in Silesia.
02Details
The plan called for a start of hostilities before the declaration of war. Wehrmacht units were to invade Poland from three directions:
- A primary attack from the German mainland across the western border of Poland.
- A secondary attack from the north, from the exclave of East Prussia.
- A tertiary attack by German and allied Slovak units across the border of Slovakia.
All three assaults were to converge on Warsaw while the main Polish army was to be encircled and destroyed west of the Vistula River.
The plan was initiated on 1 September 1939 and was the first European military operation of World War II.
Sources and credits
This article is adapted from the Wikipedia article “Fall Weiss”, written by its contributors and licensed under CC BY-SA 4.0. Fathomly has changed the layout, removed citation markers, navigation and maintenance notices, and adjusted punctuation. This adapted version is shared under the same license. For references, see the original article.
Images, from Wikimedia Commons:
- Fall Weiss (map).jpg by Unknown authorUnknown author, Public domain
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