Rubuta ci gaba don wannan sakin layi - Gwanin biyu na yakin basasa - USAAF da rana, RAF da dare - ya gina a cikin manyan bama-bamai na yankunan masana'antu na Jamus, musamman Ruhr, wanda ya biyo bayan kai hare-hare kai tsaye a kan biranen kamar Hamburg
, Kassel, Pforzheim, Mainz da kuma fashewar bam din Dresden da ake yawan zargi.