As was widely covered by his adoring press, Gen. David Petraeus this week stepped down as commander of allied forces in Afghanistan to begin his new job as director of the Central Intelligence Agency. Petraeus is the latest in a long line of celebrity soldiers that dates back to Gen. George McClellan, Abraham Lincoln’s mercurial field marshal whose star collapsed under the burden of his presidential ambitions. Read the entire post on the US News & World Report website.