Answer:
Tsarina Alexandra's background became a problem during WWII because she was highly influenced by Rasputin, who was a Russian mystic and self-proposed holy-man. This influence of a poor man upon the Tsar and Tsarina led to the downfall of the Russian Monarchy and the rise of the Communist regime known as the USSR. This indirectly leads to WWII because the USSR was one of the major powers in play during WWII.