President Roosevelt decided that Eisenhower not Marshall would be Supreme Allied Commander in Europe.
Answer:
Philanthropists
Explanation:
I believe this is the answer you are looking for.
There were of course several people who held this view, but perhaps the most prominent was Woodrow Wilson, the President of the United States, who pushed for a much more secure Europe after WWI to prevent such things from happening again.
The answer to this question is number 2