Answer: Operation Overlord otherwise known as the Battle of Normandy (it was a codename ) and yes it was effective they were successfully invaded
Explanation:
German occasion of west Europe during ww2
War elephants<span> played a critical role in several key battles in antiquity, but their use declined in the Middle Ages. With the spread of firearms in the early </span>modern period<span>, military </span>elephants<span> were restricted to non-combat engineering and labour roles, and some ceremonial uses.</span>
"They became League of Nations mandates".. hope this helped! :)
