Previous American governments (mostly Democratic) have a long, shameful history of removing foreign leaders they dislike, for one reason or another, and replacing them with more agreeable figures.

It's hard to know quite where to begin, and absolutely impossible to be exhaustive. General Smedley Darlington Butler(1881- 1940), twice winner of the Congressional Medal of Honor, tells a long, bloody tale in his little book War Is A Racket, in which he demonstrates that the United States Marines were sent on gunboats to various places across our sad, scarred, and war-weary planet—notably to South and Central America—to protect the interests (with rifles and bayonets, if necessary) of corporations like the United Fruit Company. Costa Rica, Honduras, Guatamala have all suffered from this kind of interference. That's why they're called "banana republics".

In 1953, the people of Iran had thrown the Shah off the throne and replaced him with an elected official by the name of Mosaddegh. British and American "intelligence" were alarmed. If the guy was a communist (he was not) he might cut off the supply of oil on which they had become dependent to enforce their will on the world, So they deposed him and set the Shah back on the throne, setting the scene for today's unholy (and extremely dangerous) mess.