Slaughterhouse-Five The British Colonel Quotes

You needn't worry about bombs, by the way. Dresden is an open city. It is undefended, and contains no war industries or troop concentrations of any importance. (6.14.6)

This line is delivered by the British colonel, who still seems to have faith that all the violence in the war is fair, justified, and aimed at appropriate wartime targets. Yet, as we know, Billy and his POW comrades are anything but safe as they travel to Dresden. How does the colonel's ideas of warfare differ from the reality of Billy Pilgrim's experiences on the ground in Germany?