Outside of wartime, yes these are jobs programs. If we stop, we lose the know-how, man-power, and facilities. Starting back up becomes expensive, time consuming

Outside of wartime, yes these are jobs programs. If we stop, we lose the know-how, man-power, and facilities. Starting back up becomes expensive, time consuming, and potentially impossible on the time scales required. That does not bode well for a war you're involved in.