Here is what retired Marine Corps General James Mattis has been up to, writing a book about the military-civilian divide:
Most Americans greatly admire the military — but they actually know almost nothing about it.
“Most people know nobody in the military,” said retired Marine Corps Gen. Jim Mattis, who spent 44 years in uniform.
“There are many people who do not know if the U.S. Army has 60,000 men or 6 million. They do not have a clue about that,” he said.
Mattis, the revered four-star general who headed U.S. Central Command before retiring in 2013, is the co-author of a new book, “Warriors & Citizens,” that reveals ground-breaking research about the cultural gap between the military and the civilian population it serves. [Army Times]
You can read more at the link, but from what was quoted in the article none of it was surprising to me.