POLAND IN THE SECOND WORLD WAR 32.3Map 15. The September Campaign, 19396 September, the Polish Command had abandoned its plan to defend the fron-
tiers. Guderian's force had already crossed the Corridor, and was poised for an
attack out of East Prussia in the direction of Brest-Litowsk. For three days, a
Polish counter-offensive on the River Bzura organized by General Tadeusz
Kutrzeba inflicted heavy losses on the advancing Germans; but outflanked to the
north and to the south, it was soon overtaken by events elsewhere. By the end of