Fall Weiß (1939)
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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.


Background

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.


Details

The plan called for a start of hostilities before the
declaration of war A declaration of war is a formal act by which one state (polity), state announces existing or impending war activity against another. The declaration is a performative speech act (or the signing of a document) by an authorized party of a nationa ...
. German 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 East Prussia ; german: Ostpreißen, label=Low Prussian; pl, Prusy Wschodnie; lt, Rytų Prūsija was a province of the Kingdom of Prussia from 1773 to 1829 and again from 1878 (with the Kingdom itself being part of the German Empire from 187 ...
. * 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.


See also

*
Plan Zachód Plan West ( pl, Plan Zachód) was a military plan of the Polish Army of the Second Polish Republic, for defence against invasion from Nazi Germany. It was designed in the late 1930s. Background While Józef Piłsudski was the dictator of Poland, ...
for the Polish defence plan *
German order of battle for Operation Fall Weiss This article details the order of battle of German military units during the invasion of Poland in 1939. The German army's forces for the invasion of Poland (codename ''Fall Weiss,'' English - "Case White") were divided into Army Group North (con ...
* List of Axis operational codenames in the European Theatre Other German plans named for colors: * Fall Rot ("Case Red") (1935) – planned defense against an incursion by France following a German invasion of Czechoslovakia. * Fall Grün (Czechoslovakia) ("Case Green") (1938) – planned invasion of Czechoslovakia. * Fall Gelb ("Case Yellow") (1940) – also known as the "Manstein Plan", the offensive against Western Europe. * Fall Grün (Ireland) ("Case Green") (1940) – planned invasion of Ireland. * Fall Blau ("Case Blue") (1942) – summer offensive on the Eastern Front in southern Russia. * Fall Weiss ("Case White") (1943) – joint Axis operation against Partisans throughout occupied Yugoslavia.


References

{{DEFAULTSORT:Fall Weiss Military campaigns involving Germany Invasion of Poland