All the sources I've read agree that this had more to do with the complete absence of a long term strategy on the German side, not the weather. They had resourc

All the sources I've read agree that this had more to do with the complete absence of a long term strategy on the German side, not the weather. They had resources for 6 months, and went into the USSR with everything they had, no reserves. When that wasn't enough, there was no plan B.