Gen. Carter Ham, on October 18, 2012
Adm. Charles Gaouette, on October 27, 2012
Gen. David Petraeus, on November 9, 2012
Gen. John Allen, on November 13, 2012
Cmdr of CENTCOM James Mattis March, 2013
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I feel like this is more, but I am not sure.
Yeh, IIRC some every year retired or forced retirement. Don’t forget McCrystal due to his rolling Stones interview.
Petraeus retired from the military in 2011. His name should not be on you list.