Answer:
In simple words, Unlike WWI, which was battled in trench with machine weapons as well as biological weapons, WWII was conducted with modern weapons and equipment, with more aircraft, warships, vehicles, and submarine. During the war, special operations techniques, as well as atomic weapons and covert communications, were created.
It killed almost 50% of the population. They were devastated. Because there was no cure for it, they turned their faith towards God.
The britons had already gone into the iron era which rome was just introduced to. a disadvantage was strategy. the romans were strategically gods.in other words the britons were not great strategists.
