You will get a quicker answer if you type your question into google, rather than here.
For example, type "eisenhower backed relations cold war" into google, I clicked the third one down:
http://www.sparknotes.com/history/american/coldwar/section6.rhtml
And the answer is: the CIA backed a coup (French for "take-over") in Iran in 1953, and then in Guatemala in 1954.
Later on, we read that
"Eisenhower began to favor using the CIA instead of the military because covert (hidden) operations didn’t attract as much attention and cost much less money."
If you think about, you'd have to be really dumb to announce to the public every time you wanted to go in and try to bully other countries into doing what you want.
"It's dishonest, but it works." I think is the motto of the governments sometimes, and probably a number of large corporations. Do your homework so you can do something about it!
Nobody will listen to you if you don't at least know some basic history or at least how to use google to find answers that your looking for.