During the final years of world war ii in europe, american and british bombing raids supported invasions of italy. destroyed german factories and cities. were ineffective as german air power grew. were mounted out of bases in the soviet union.

The correct answer is destroyed German cities and factories.

It is during the end years of world war 11 in America, Europe and British bombing raids destroyed factories and cities of German. The end of world war 11 made German surrender to allies which took place in May 1945.

Those allied were being forced to take large numbers of axis prisoners which were being taken on western from the western allies which witnessed how German troops were being captured.

This made the German soldiers to surrender on the time of Eastern front. There were thousands of people who died in the camps because of disease, exposure, and  starvation.

In the same year 1945, forces of German left Finland, and those who were in Berlin, Bravia, and Italy surrendered.  

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