Nationwide blackouts, fuel shortages and food running out: Cuba is in crisis. The United States has cut off oil to the Caribbean nation, including from Venezuela and Mexico, previously Cuba's two main oil suppliers. US-Cuba tensions are at boiling point after decades of animosity: From the Cuban Revolution and the rise of Fidel Castro, to the US’ failure at the Bay of Pig Invasion and later, the Cuban Missile Crisis at the height of the Cold War, the troubled relationship between the communist island and capitalist superpower has a long history. Now the Trump administration is warning that Cuba's cooperation with Russia and China could pose a threat to the US. Trump and his Secretary of State, Marco Rubio, are eying regime change in Cuba. So what's behind the mounting US pressure on Cuba — and can the island nation defend its independence?  

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