The French Revolution, and more importantly its aftermath, resulted in the first major split in American national politics, which later grew and ended up in the first party system.
Thomas Jefferson, along with his followers, was pro-French, while Alexander Hamilton, John Adams and their associates were anti-French Revolution.
United States of America fought an undeclared war with the rise of Napoleon, pro-British a series of naval skirmishes known as the Quasi-War, with the Directory in 1798.