Which country was the last to join the allied power?

How has the army changed over the last two decades? How many us military died in ww ii? What are the events that led up to world war 2 in Europe? What side was Ukraine on in world war ii? Who is the most lusted women in the world? What was the result of the stalemate in the war of Europe in 1916? When did the us discover missiles in cuba? What advantage might the allies have had? What is the name for the guards at Buckingham Palace? Reason for us neutrality in World War 1? Who wore World War 2 leather flying helmets made by Charles Markson? What was the main purpose of Reconstruction? What were the names of rose greenhow's daughters? Who had the second nuclear bomb? How did Germany pay off World War 1 debt? Was the Battle of Midway the first navy battle carried out completely by aircraft? What Cuban invasion attempted to overthrow Castro? After the Battle of Antetam the Union forces were placed under the command of? What was the name of the first major Allied Victory in the Pacific and first time in naval history ships did not engage one another directly? How did the north get their troops in the civil war?