Possibly. Everyone so far since the advent of nukes has generally abided by not shooting each other’s surveillance down in international territory (water, space

Possibly. Everyone so far since the advent of nukes has generally abided by not shooting each other’s surveillance down in international territory (water, space, etc.) But perhaps that would change if UUVs are following subs. Also I suppose the sub could re-enter its own coastal waters and then do it too, much as we shot down China’s spy balloon.