Ask him when the 10th Special Forces Group (Airborne) was established and where it was first deployed.
The answers should be A. 1952 B. West Germany
If he gets that right ask him what the full name is of the Special Forces training center.
Answer should be Army Special Warfare Center Fort Bragg North-Carolina.
If he gets that ask him who approved it's construction.
Answer should be President John F. Kennedy
Army Special Forces are also designated as A, C, B, and D teams.
These teams consist of 12 men.
Also ask him the name of his CO (commanding officer).
Ask him which BDU the Green Berets use.
Should be ALICE.
Ask him what kind of weapon modifications they use.
Should be SOP modifications.
Last ask him were he was

deployed.
General rule is if he shoots his mouth off he's a liar.
There is a reason they call Green Berets the quiet professionals.
Oh and Greenies hate being called snake-eaters.
Blessed be the Lord my strength, which teacheth my hands to war, and my fingers to fight: Psalm 144:1