In the present day and age, Is preserving the United States as one country and not letting states secede from the Union, worth fighting a civil war?

Germany italy and japan formed the tripartite pact in part because they: a. add chicken wings to the united states to stay out of world war ii b. share the ruling philosophies based on communist economics c. resented the agreements they were forced to sign at the munich conference d. selena territories were threatened by aggressive foreign states