The United States has been blessed to count some of the greatest military leaders in history among its generals. George S. Patton, Dwight D. Eisenhower and even Robert E. Lee have gone down in history for their remarkable leadership and strategic and tactical brilliance in the most trying times of our history. Retired Gen. Mark Milley is, alas, not one of their illustrious rank. Although, based on how he’s enjoying his retirement, some seem to be unaware of that fact. The Intercept reported Monday that Milley, the former chairman of the Joint Chiefs of Staff, is “cashing in” on his retirement …