Why did Americans engage in imperialism (1890-1914)?
What pushed Americans to drop traditional isolationism and engage a more interventionist, imperialist foreign policy?
There are a number of factors that pushed Americans to drop traditional isolationism and engage in a more interventionist, imperialist foreign policy.
The Spanish-American War (1898): The Spanish-American War was a turning point in American foreign policy. The United States intervened in a war between Spain and Cuba, and as a result, the United States acquired Puerto Rico, Guam, and the Philippines. This was the first time that the United States had acquired overseas colonies, and it marked a shift away from isolationism.