D-Day was so risky because it was delayed so many times and bad weather wasn't on their side. The allies were successful because they mange to take out the turrets on top and storm in to the Nazis place above
For an Industrial Revolution to take place, a country must have access to a great deal of resources such as steel, iron, etc., a large work force, and demand for the products being made.
Prior to the Industrial Revolution, which began inBritain<span> in the late 1700s, manufacturing was often done in people's homes, using hand tools or basic machines. </span>Industrialization<span> marked a shift to powered, special-purpose machinery, factories and mass production.</span>