What was the one purpose of this world war 2 poster?

As a result of Abraham Lincoln's election as president in 1860 several southern states called for? What now pension for 3925 earlier total drawingdefence pension? Why were the aztecs not as technology developed with weaponry as the conquistadors? When did Iraq refugees flee Iraq? What was the Irony in War? Are trenches still used in wars today? What was the initial attitude of the british public towards ww1? How did Japanese internment camps look like? 1956 elections to unify Vietnam did or did not take place? What major civil war battles were fought in Virginia? How many people were killed in the sepoy mutiny? What is a Casson Wagon? What was America's reaction to the Holocaust? Why is the arms race on land the least important cause of the world war 1? The South thought they would get more weapons from? What was Franz Ferdinand's wife wearing when she was killed? How Many Japanese People Died in World War 2 Per Year? About how many people died as a result of the bomb that was dropped on August 6 1945? What German cities were destroyed in World War 2? What two ways could a person in the north avoid draft?

What was the one purpose of this world war 2 poster?