What was happening to the american population during the early 19th century?

The system of checks and balances ensures that

The north was victorious in the battle of bull run true or false

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