Are you serious?
"In Nicaragua, the National Guard was a militia and a gendarmerie created during the occupation of that country by the United States from 1909 to 1933. It became notorious for human rights abuses and corruption under the regime of the Somoza family."
http://en.wikipedia.org/wiki/National_Guard_(Nicaragua)
"The United States' Joint Special Operations Command (JSOT) conducted training for the Mujahedin-e-Khalq (MEK), an Iranian opposition group listed by the US as a terrorist organization, journalist Seymour Hersh claims."
http://www.rt.com/news/us-terrorist-mek-intelligence-747/
"Washington, fearing the spread of Soviet influence (and worse the new government's radical example) to its allies in Pakistan, Iran and the Gulf states, immediately offered support to the Afghan mujaheddin, as the "contra" force was known."
http://www.historycommons.org/context.jsp?item=a86operationc...
I'm sure you're aware that the mujahheddin became Al-Quaeda.
This is just the US, because that's where the majority of the posters on this site are from. You can easily find examples of the UK & France doing the same thing. "The western countries" hands are not clean.