You're also forgetting that the revolution started peacefully. People protested simply for freedom and liberty, which all human beings aspire for. It was the suppressive and violent actions of the government, which immediately resorted to killing its own citizens, that has lead the conflict to eventually turn violent and to where it is now.
No matter what the global interests are, it's the very actions of the suppressive regime that's worsening the situation and leading to the country's destruction. None of this would exist and we wouldn't be talking about it today, had the mafia-like government initially conceded to the will of the people and worked on transitioning the country to a fully democratic government. But notice the "mafia-like" adjective? A mafia-like government obviously does not have the best interest of the country in mind, so they're not going to adopt the will of the people and threaten their iron-grip rule. They're going to suppress every dissent with maximum force. That's exactly what has been happening for over 40 years.