It has been done in the past and can be done in the future. If we can't even do something like that forget about other changes. And I'm not talking about nuclea

It has been done in the past and can be done in the future. If we can't even do something like that forget about other changes. And I'm not talking about nuclear. In fact, if your goal is really only defend your territory, you could keep nuclear and downsize all those war airplanes and tanks burning oil, and you would not be worse for it.