Rand Held its COIN Symposium in 1962 could do a round table with Stephen Hosmer facilitating these honorable gentlemen:

Charles T.R. Bohannan, Lieutenant Colonel, AUS-Ret.
Wendell W. Fertig, Colonel, USA-Ret.
David Galula, Lieutenant Colonel (French Marine Corps)
Anthony S. Jeapes, Captain (British Army)
Frank E. Kitson, MBE, MC, Lieutenant Colonel (British Army)
Edward Geary Lansdale, Brigadier General, USAF
Rufus C. Phillips, III
David Leonard Powell-Jones, DSO, OBEY Brigadier General
(British Army)
John R. Shirley, OBE, Colonel (British Army-Ret.)
Napoleon D. Valeriano, Colonel (formerly with the Armed Forces
of the Philippines)
John F. White, Colonel (Royal Australian Army)
Samuel V. Wilson, Lieutenant Colonel, USA