Taiwan with nukes would lead to long term peace. South Korea used to house US nuclear arms until 1992 and they're re-considering it: https://en.wikipedia.org/wiki/South_Korea_and_weapons_of_mas...
Do you wish all those countries had nuclear arsenals? If so, I recommend that you read _Command and Control_ by Strasser: it is difficult the make sure the whatever nuclear policy is chosen by a government is actually followed.