Which Group of adult males, ages 18 to 45, was NOT required to fight in the U. S. Military during World War I? American Socialists
O Conscientious objectors
People who opposed the war
American Indians with U. S. citizenship

O Conscientious objectors

Explanation:

i confess that there are several parts of this constitution which i do not at present approve, but i am not sure i shall never approve them: for having lived long, i have experienced many instances of being obliged by better information or fuller consideration, to change opinions even on important subjects, which i once thought right, but found to be otherwise. it is therefore that the older i grow, the more apt i am to doubt my own judgment, and to pay more respect to the judgment of others.