The expansion of the U.S. empire fueled significant opposition among African Americans, who opposed the racism and the violence of these ventures. In 1903, in The Souls of Black Folk, the writer and agitator W. E. B. Du Bois wrote of Black revulsion to "the recent course of the United States toward weaker and darker peoples in the West Indies, Hawaii, and the Philippines." Here is one1 account of antiwar sentiment among blacks at the time.
From Voices of A People's History, edited by Zinn and Arnove