The reason for the Mississippi River being important to the Americans is given below.
Explanation:
The Mississippi River is the second-longest river of America. After the revolution, it was important to the United States as the Americans had moved west in the late 1700s since <em>it connected them directly to French in New Orleans, their biggest supporters during the war</em>. it had linked Louisiana's Northwestern and the Caribbean areas as well.
Not only did it give water for cropping but also shortened the distance for many travellers making it easy for them.
The Articles of Confederation served as the written document that established the functions of the national government of the United States after it declared independence from Great Britain.