Who Was Benedict Arnold?By: James Buckley Jr., Who HQ Illustrator: Gregory Copeland Series: Who Was? Find out how this one time American hero became the country's most notorious traitor. As a young child, Benedict Arnold never shied away from a fight. So when the French and Indian War began in 1754, Benedict was eager to join the militia and fight for the British colonies in America. And when he was eighteen years old, he got his chance. Arnold had no idea that less than