How do you unlock the elven in epic war 2?

Why did japan and china want to limit trade with the europeans? Which European country had the largest Jewish population prior to World War 2? What are the background cause of the First World War? How do the experiences of African Americans during the war show both continuity and change? What did brave used to mean? What are facts about rationing in World War 2? What was the importance of the battle at Shiloh? Were famous people drafted during World War 2? What medals did Alvin York win in World War 1? How were the samurai and daimyo related? Why did World War 2 pilots name their planes after women? What was the last merchant ship sunk in World War 2? The shot heard round the world refers to the beginning of the? What are your achievements in last 2 years? What two nations officially entered the war in the same year after they were attacked by the Axis? Why did churchhill impose the iron curtain? When did Panzer General happen? Why do you still remember and honor the veteran of World War 2? How did Ivan the terrible look like? What factor helped the north to produce more arms and supplies more then the south?