I apologise if this sounds a wee bit snippy but I think you need to read some history books to find out what the US and western friends were getting up to prior to Bush Jr's time in office. Here's a couple of suggestions:

https://www.amazon.co.uk/Overthrow-Americas-Century-Regime-C...

https://www.amazon.co.uk/All-Shahs-Men-American-Middle/dp/04...

Have a look for books on the US's covert (and slightly less covert) activities in Central and South America.