what universal idea is the uncle sam poster meant to represent 
uncle sam is a personification of the u s government he is meant to represent the ideas of the government as opposed to other aspects of the nation such as liberty and freedom though the personification in some uses does represent the u s as a whole the famous uncle sam poster that points at the viewer stating i want you is meant to encourage enlistment in the u s military and was prominently used during world war i as well as to encourage the general population to support u s entry into the war 