Last week, I broke a story reporting that some 28,000 personnel will be authorized to wear the Presidential Unit Citation ribbon for serving under Marine Expeditionary Brigade-Afghanistan in 2009 and 2010. It’s prestigious, unit-level recognition of the sacrifices that thousands of Marines made as the U.S. ramped up the war in Afghanistan more than two years ago. Today, Maj. Gen. Larry Nicholson weighed in on the honor. He commanded the MEB as a one-star commander, and is back in Afghanistan now serving as the operations officer for the International Security Assistance Force Joint Command based in Kabul. Nicholson had the…