An aid is a country that would provide some type of help to a country that they are close to but not allied with. A treaty is document that keeps peace between countries. And lastly, an ally or alliance is the strongest bond countries have with each other during a war
Part two
The U.S. was not a part of the diagram because they were neutral but the U.S declared on Germany in 1917 because Germany attacked U.S international shipping ships.
Part two
The U.S. was not a part of the diagram because they were neutral but the U.S declared on Germany in 1917 because Germany attacked U.S international shipping ships.