The French and ultimately the Indians lost. The French lost Quebec and Canada to the British. This ended the French support of the Indians which had limited western advancement of the 13 Colonies.
The united states had ties to many other economies in the world, when the U.S economy collapses in 1929, the world is sent into the depression, which Hitler used to his advantage, thus causing the raise of Fascism in the 30's thus resulting in WW2. Unemployment rates skyrocketed when the unemployment occured, banks failed, etc.
It renewed the morale of the American public, but it convinced potential foreign partners, such as France, that American could win the war, and that it might be in their best interests to send aid
