WASHINGTON — Cuban President Miguel Díaz-Canel revealed that his island nation is bracing for an attack from the US and declared that he is willing to die resisting President Trump. Since last December, the US has imposed a blockade around Venezuela as part of its Operation Southern Spear effort, and used that to cut off oil supplies to Cuba, which has since plunged further into an energy crisis. “I don’t think there would be any justification for the United States to launch a military aggression against Cuba, or for the US to undertake a surgical operation or the kidnapping of...