How do you unlock the elven in epic war 2?

When did the army draft for the vietnam war start drafting men? Following World War 2 the United Nations was empowered to carry out which task? Who was Spain at war with in the year 1438? How would you use the continental army in a sentence? What country has the strongest most advanced military? Why were aircraft carriers crucial to the Japanese and American war efforts? How long did Operation Allied Force the first ever NATO military campaign last? What best describes trench warfare during world war 1? What is a sudden shortage of goods called? The french first gained access to Vietnam with? How big was the Austro-Hungarian navy before World War 1? Which general left the U.S. army to join the confederate army? How did World War 2 come at in end? What could a nuclear attack lead to? What side do you use the kampilan? What was the name of the association created by the seven seceded states and how did it protect the institution of slavery? What is The Post War International System? What is intimate alliance? What was the civil war testing? When were bulldogs invented?