Mexico has emerged as a key fuel supplier to Havana as the United States prepares to seize control of Venezuelan oil and the administration of U.S. President Donald Trump hardens its stance toward Cub

With widespread power outages, medicine shortages and rising food prices, experts say Cuba’s economy has never been worse, with the crisis coming just as the supply of Venezuelan oil is threatened.

Cubans are speculating about whether their government will be the next to fall, with Venezuelan oil imports now in jeopardy.

The Trump administration is expressing confidence Cuba will fall, but there are concerns the US doesn’t have a plan.

Cuban officials on Monday lowered flags before dawn to mourn 32 security officers they say were killed in the U.S. weekend strike in Venezuela, Cuba's closest ally, as residents of the island nation wonder what the capture of Venezuelan President Nicolás Maduro means for their future.

The U.S. striking Venezuela and capturing its leader has practical implications for China, Russia, Iran and Cuba, and it also sends messages to each nation.

The U.S. military captures Venezuelan leader Nicolás Maduro, threatening Cuba's economy as the nation loses a key provider of oil supplies for communist country's energy sector.

For decades, Cuban intelligence agents were Cold War stars, dismantling plots to assassinate Fidel Castro, recruiting senior U.S. government officials and protecting heads of state from Angola to Panama.

Cuba said the troops died as "victims of a new criminal act of aggression and state terrorism...carried out by the United States."

American leaders see opportunity for change in Cuba after Venezuela developments, with the potential for first-ever visits to their parents' homeland.