[sudosysgen]

> What can Iran do if other countries consider Iranian ship as free for the taking as retaliation for Iran attacking ships in the strait of hormuz?

This is exactly what Trump tried. The US was boarding Iranian ships thousands of kilometers away. In the end the US still backed down and agreed to an Iranian toll in the MoU.

Iranian ships have been getting boarded for extremely flimsy reasons for over ten years now. That forced them to adapt to it in such a way that they are now far more resilient to it than the rest of the world is.