How were the Americans drawn into world war 1?

What were the names of the battles in Po Valley in World War 2? What comes after is Command Sergeant Major of the army? When was the Warsaw ghetto liquidated? What song written by cole porter was inspired by barbed wire? What nation was the last to surrender to the allied forces in World War 1? How did the battle of Marathon get its name? As Lee sat in Petersburg nearly surrounded by Grant what was his plan to still win the war? What was the significance of the Chinese war in the Civil War? On the 13th and 14th of September in 1814 rockets played an important role in American history. What happened on that date? What was a major unintended consequence of acquiring the Philippines as a territory after the Spanish-American War? What were the World War 1 Central Power Strategies? When Bartaan fall in April 1942 most us and Filipino soldiers who surrendered to the Japanese? Used the fighting tactic known as the phalanx? How many miles of trenches were dug across Northern France in 1910? Which battle in Georgia did patriot forces defeat a much larger loyalist militia? What did Frederick douglass' wife die of? Did polish forces land on D-Day? What is a good sentence using the word armies in it? Who is peter van pels'es dad? How did Russia's decision to withdraw from World War 1 result?