That's from William Blum, a Marxist apologist for the Soviet Union, who never got over the collapse of the Evil Empire. Nor did he forgive Reagan for his role in bringing that collapse about.
Reagan had nothing to do with any of it. Though he did waste a lot of money on a ridiculous Star Wars project - which, to this day, cannot be made to work - and other military boondogles, which ran up the the federal debt.
Gorbachev began implementing Perestroika in the mid 80's.
As to the countries listed above, please read some history. You could start with the CIA's "Crown Jewels".
Iran, 1953. Guatemala, 1954.
Please tell us what you know about those CIA coups.