Cuban Foreign Minister Bruno Rodriguez meets Sergey Lavrov and is set for talks with Vladimir Putin in Moscow as Cuba faces blackouts and a deep fuel crisis triggered by U.S. oil sanctions. Russia vows humanitarian fuel aid and rejects any U.S. naval blockade, while Havana struggles after losing supplies from Venezuela and Mexico. Tourism, flights and power generation are collapsing amid shortages. The Kremlin says support for Cuba will continue despite improving ties with Donald Trump. What this means for global geopolitics, sanctions, and Russia-Cuba relations.