Electoral change is more plausible than a military coup

Could the American military remove the government after the war turns against the United States?

No. Institutional military loyalty points toward the 1916 election replacing the administration and ending the war.

A military coup is rejected because the American armed forces are characterized as institutionally loyal to civilian government. The imagined exit instead comes through the 1916 election, when opposition to the war is projected to remove the administration that began it. Wilson’s supposed legal basis for entering the war remains uncertain between a treaty and some other secret agreement with Germany. The diplomatic mechanism is therefore left unresolved.