A famous Republican once said

The problem in defense is how far you can go without destroying from within what you are trying to defend from without.

and

Every gun that is fired, every warship launched, every rocket fired, signifies, in the final sense, a theft from those who hunger and are not fed, those who are cold and are not clothed. The world in arms is not spending money alone. It is spending the sweat of its laborers, the genius of its scientists, the hopes of its children.