Ships have to be registered in a country and follow the laws of that country when they're in international water.
If you don't register your ship you're effectively a pirate and any navy can just blast your ship out of the water.
Ships have to be registered in a country and follow the laws of that country when they're in international water.
If you don't register your ship you're effectively a pirate and any navy can just blast your ship out of the water.