On their anniversaries, Yalta and Helsinki offer lessons for Ukraine, Trump, and the balance of power in Europe.

Steve Bannon, no longer in Donald Trump's inner circle, but no less politically savvy for it, remarked recently,“If we aren't careful, it [Ukraine] w ...

Did you know that Joseph Stalin could sing with perfect pitch? Or that he was so scared of his wife that he would hide from her in the bathroom? Did you know that Peter the Great liked to surround ...