We learn from history ……. right? https://worldhistoryreal.quora.com/https-www-quora-com-How-did-the-USSR-recover-from-27-million-losses-in-WW2-answer-Mats-Andersson-16?ch=17&oid=243860519&share=6d35c6d0&srid=slH8N&target_type=post