Identify why the western ports were important to the united states.

The ports of the West Coast of the United States have historically been very important for the development of the country. From the date of independence, when the country only had ports in the Atlantic Ocean, it was understood that bioceanity was crucial to convert a nation into an economic power. The American expansionist plans, based on the doctrine of Manifest Destiny, sought to reach the Pacific Ocean.

Maritime merchants wanted western ports to trade with Pacific countries.