National Geographic : 1945 Jul
The National Geographic Magazine 1'. S. Army Air Forces, Official Saturation Bombing Nearly Erased Diiren, When Nazis Resisted Desperately The Germans' makeshift defense line along the Roer River (foreground) proved more of a barrier than either the Rhine or the Siegfried Line. But this bomb-blasted city was suddenly left far behind when the First Army sprinted to the Rhine and beyond. Compare this picture of devastation with that of Kettig (page 25), which offered little resistance. Germany has many such examples of war's trickiness, like a tornado's path.