The UK and other Western powers are talking about helping stop arms being smuggled into Gaza, to support a ceasefire.

Core Question: when they see likely Hamas arms smugglers heading towards Gaza and ask/order them to stop and they do not stop, are they prepared to use lethal force to enforce the arms blockade? In effect to join Israel in containing Hamas and its supporters?

If so, what is the legal source of the mandate?

If not, the gesture doesn’t mean too much?