<em>Emperor Darius who commanded the Persians in the Gerco-Persersian war, was determined to take down the Greeks. They have made several movies and books on this war. </em>
<em>Hope I helped. :) </em>
Answer:
D-Day called for one of the most critical spread and focus strategies in history. The Allies needed an entry into Europe that would maximize their chances of success while minimizing the risk to lives and military assets. The map of Europe prior to D-Day illustrates how they arrived at their brilliant solution.
Explanation:
It would be A. Adding machine it was invented in 1642.
