Prince Harry makes a shocking claim in his new memoir Spare, alleging Prince William and Kate Middleton encouraged him to wear a Nazi uniform to a party. Harry recently called it one of his most regrettable decisions. Kate Middleton, Prince William, Prince Harry, and Meghan Markle | Kirsty O’Connor – WPA Pool/Getty Images Prince Harry wrote about the nazi uniform costume in his memoir ‘Spare’ In a leaked excerpt from Spare that was published on the Page Six website, Harry recalls how William and Kate encouraged him to wear the Nazi uniform costume to a 2005 party. According to Harry,...