Having an aid means that you will give food/supplies to that country when they are in need. Having a treaty means that you have a formal agreement with a country. Having an alliance means that you are friends with that country and you would fight for/with them.
The United States isn't part of the diagram because we didn't join the war until 1917. This diagram is from the beginning of the war. The U.S. joined the war because they were helping the allies to much to be still consided "neutral
The United States isn't part of the diagram because we didn't join the war until 1917. This diagram is from the beginning of the war. The U.S. joined the war because they were helping the allies to much to be still consided "neutral