Morover wrote:"Why can weapons only be fired? Under this proposal, if an individual from a nation that has not yet been met by the home nation starts stabbing civilians outside of the home nation's territory, there is nothing the home nation can do in response. The proposal seems to assume that all weapons are firearms or something similar."
Well, under that logic the home nation can stab back.
Also, after the stab-fight is resolved the home nation can counterattack as it pleases, as it would no longer be the first encounter.