Harry Truman actually said...

We have committed ourselves to international cooperation through the United Nations.

Special Message to the Congress on Control of Trade in Arms and Munitions of War.

04/14/1947

More Harry Truman Quotes

The military assistance program is to prevent aggression.

We must face the fact that we have forever put behind us the false security of isolationism.

I don't know a thing about it at all, only what I saw in the papers.

I haven't been there.