Nuclear weapons are a deterrent against somebody invading the US (or another NATO country) but that doesn't make conventional forces not a deterrent against other kinds of aggression. Many attacks have been made against the US and not resulted in nuclear retaliation, like 9-11.
India and Pakistan have nukes and have fought each other recently so your assertion that "has_nukes() == no_game_start()" is *false*. Nukes, however probably will deter India from doing the full-Putin into Pakistan.
India and Pakistan have nukes and have fought each other recently so your assertion that "has_nukes() == no_game_start()" is *false*. Nukes, however probably will deter India from doing the full-Putin into Pakistan.