They're shooting missiles at civilian ships. They are thankfully large targets with few humans, but that's not safe behavior. Someone's eventually going to get hurt/killed if it continues.
The US Navy ship has every right to be there under international law, and its reason for being there is to repel attacks on civilian shipping that also has every right to be there.
The US Navy ship has every right to be there under international law, and its reason for being there is to repel attacks on civilian shipping that also has every right to be there.