At exactly five o’clock thousands of windows flashed as they were flung open. From all sides a hail of bullets struck passing Germans, riddling their buildings and their marching formations. In the twinkling of an eye the remaining civilians disappeared from the streets. From the entrances of houses our men streamed out and rushed to the attack. In fifteen minutes an entire city of a million inhabitants was engulfed in the fight. Every kind of traffic ceased. As a big communications centre where roads from north, south, east, and west converged, in the immediate rear of the German front, Warsaw ceased to exist. The battle for the city was on.