The Battle of Yonkers was the United States Military's first large-scale, official engagement of the Zombie War. It took place in Yonkers, New York, the largest city in Westchester County, (just north of the Bronx, NY). The battle was an absolute catastrophe: if any one event can be singled out as the point when zombies officially became the dominant species on the planet, it was Yonkers. In the book, U.S. Infantryman Todd Wainio narrates the events of the battle. In the audio book release of World War Z, Todd Wainio is portrayed by Mark Hamill.