At least two U.S. Coast Guard cutters are actively patrolling off Cuba’s northeastern coast (between Moa and Puerto Padre), explicitly “in position to intercept ships if ordered.”
The Trump administration has issued a directive to “prevent oil from entering Cuba.”
Precedents exist: the U.S. has already seized at least nine vessels involved in illicit fuel deliveries to Cuba. The Sea Horse (Hong Kong-flagged, ~190,000–200,000 barrels Russian diesel) is now ~5 days out and moving at 9.9 knots; the Anatoly Kolodkin (Russian-flagged, ~700,000–730,000 barrels Urals crude, already U.S.-sanctioned since 2024) is expected in early April. Both are using shadow-fleet tactics (AIS spoofing, “not under command” broadcasts, ship-to-ship transfers).
The U.S. can board/seize them in international waters near Cuba under sanctions enforcement authority.