Why was George Marshall’s role important in WWll?

He was the "organizer of victory" and peace architect during the World War 2.

Explanation:

George Marshall played a very important role during the World War. He was the Chief of Staff when the war began in 1939.He was the main reason behind the exponential increase in the size of the US army. The number increased from 200,000 to over 8 million during the war. He ensured that the army receive supplies and gave strategic directions. In 1944, he also oversaw the Operation Overload. He was called as the "organizer of victory" by WInston Churchill and was also an architect of peace, during and after the WW 2, as he helped maintain the Anglo-American coalition.