system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: After world war 1 Germany was dirt poor but how did they manage to get such huge army and inflict huge damage in world war 2 ?
gpt
Massive deficit spending and outright not even paying for anything.

The German economy under Hitler was a house of cards.  It's not the economic miracle people pretend it was.

Hitler cooked the books.  Borrowing money was hidden.  Deferred payments were written to German industry which were then deferred over and over and over and over again.  

The 1938 and 1939 invasions of Czechoslovakia and the 1939 invasion of Poland were timed for when the German economy was about to collapse under the weight of how much it owed.  

Germany launched invasions to plunder everything they could get their hands on to keep the German economy going for just a little bit longer.

However, they never had a chance of winning because they always needed more enemies to plunder to keep the economy going and that was unsustainable.