• [Did WWII really start because of the harsh treatment of Germany?] (https://www.reddit.com/r/AskHistorians/comments/305vl4/did_ww2_really_start_indirectly_or_directly/)
• [How did Germany's manpower recover for WWII?] (http://www.reddit.com/r/AskHistorians/comments/35z24e/how_did_the_manpower_of_nazi_germany_manage_to/)
• [Treaty of Versailles/myths of reparations historiography] (http://www.reddit.com/r/AskHistorians/comments/3b24mk/treaty_of_versaillesmyths_of_reparations/)
• [Why did the Allies fail to limit the size of the Reichswehr?] (https://www.reddit.com/r/AskHistorians/comments/3ajwmh/why_was_the_size_limit_imposed_on_the_reichswehr/)
• [Versailles 'Bad History'] (https://www.reddit.com/r/AskHistorians/comments/3hiukg/is_this_bad_history_of_the_treaty_of_versailles/)

^ these answers I've given should be pertinent.

Thanks to the Dawes Plan in 1924, Germany enjoyed 5 steady years of economic stability before the Great Depression. When the Great Depression did hit, Hjalmar Schacht's deficit spending plans had the German economy recovering by 1934, and in 1935 Hitler placed the German economy under Goering's Office of the 4 Year Plan, which set in motion the German rearmament program, and thus the path to war.

Wages of Destruction by Adam Tooze is indispensable for reading about the Nazi economy.