Want to Stay Married--Rise High in the Military

Obamafoodorama has a post on Obama's dinner for the military big shots tonight. The guest list is only about 21 or 22 couples, but only one general is unaccompanied, one couple has different last names, and the rest are married.  Not sure whether it's very hard to get promoted if you aren't married, or whether the military life is good for marriages.