US soldiers stop two ships. The ships have oil. This is a strong move.
One ship has a Russian flag. The US wants to follow rules. The ship is called Marinera.
The UK navy helps too. Another ship is stopped. It is called M/T Sophia. It has oil from Venezuela.
The US says Marinera is a "shadow fleet" ship. It changed its flag. The US wants to stop Venezuela's money.
Russia is not happy. They want their sailors back. This can make things harder.
The US wants to stop all Venezuela oil. This is a big plan. We do not know what will happen.