Plan details
The plan called for start of hostilities before the declaration of war and to pursue the Blitzkrieg doctrine of lightning war. German units were to invade Poland from three directions:
* main attack from Germany mainland through western Polish border
* second route of attack from northern Prusy area
* tertiary attack by German and allied SlovakiaSlovak units from the territory of Slovakia
All three assaults were to converge on Warsaw, while the main Polish army were to be encircled and destroyed west of the Vistula.
Fall Weiss was initiated on 1 September of 1939, and was the first operation of the Second World War.
Similar plans
Alongside of Fall Weiss ("Case White") German strategists prepared other variants of the plan:
* Fall Gelb ("Case Yellow") (1940) - German offensive against western Europe
* Fall GrünFall Grün ("Case Green") (1938) - the German plan to invade Czechoslovakia
* Operation Grün (Ireland)Fall Grün 2 - (1940) - the German plan to invade Ireland
* Fall Rot ("Case Red") (1935) - German defense plan in case of an incursion by France when Czechoslovakia is invaded