So you don't get into tremendous debt, and trash your credit. And so you know your limit of spending from past experiences
Answer: when germany started to build its military again (which they were not really supposed to be doing the the first place) i would've put limits in place immediately. the allies allowed Hitler to do what ever he wanted because they were afraid. i would've tried to shut it down before the german army got out of hand. before they obtained the power they had.
The Manhattan Project developed nuclear technology.