A 90-year-old Medal of Honor winner is involved in a dispute with a neighborhood association that wants him to remove a flag pole from his front yard. Supporters, among them a United States senator, are supporting the medal winner, Van T. Barfoot, a World War II veteran. Mr. Barfoot put up a 21-foot flagpole in September. He raises the flag daily at sunrise and retires it at sunset. But the Sussex Square homeowners association in Richmond said the flagpole violated the neighborhood’s aesthetic guidelines and ordered him to remove it by Dec. 11 or face a lawsuit. Senator Mark R. Warner, a Democrat, is among those offering to help break the impasse, according to a spokesman for Mr. Warner, Kevin Hall. Others are backing Mr. Barfoot on the Internet, including with a Facebook page.