Why did socialists call it an imperialist war?

Various motives prompt empires to seek to expand their rule over other countries or territories. These include economic, exploratory, ethnocentric, political, and religious motives. Economic: Imperial governments, and/or private companies under those governments, sought ways to maximize profits.

Explanation:

not sure might be he acquired the entire oregon territory from great britain

social contract theory, nearly as old as philosophy itself, is the view that persons' moral and/or political obligations are dependent upon a contract or agreement among them to form the society in which they liv