There is a pattern of nations whose difficult histories have resulted in authoritarian governments peddling grievance.
On their anniversaries, Yalta and Helsinki offer lessons for Ukraine, Trump, and the balance of power in Europe.
The New Tsar' unveils what Vladimir Putin said in private about the poisoning and explores the often brutal methods behind his extraordinary rise to power. Watch the full documentary on BBC Select.
The 75th anniversary of the large hydroelectric power station commissioned by Stalin, still the second largest in Russia, was ...