The XYZ Affair caused tensions to increase between the United States and France. It led to an undeclared war on the United States. Because of it, Congress chose to increase their defenses, so the Department of the Navy and warships.
"An incident in which French agents attempted to get a bribe and loans from US diplomats in exchange for an agreement that French privateers would no longer attack American ships. It led to an undeclared Naval War between the two countries."
