Shit… if he had not saluted you would accuse him of disrespecting the troops.
As CinC, he was returning the salutes given to him by the passing formations. Perfectly acceptable and appropriate.
KIRK, A TRUMP SYCOPHANT THINKS THIS IS A "POWERFUL IMAGE"; WHAT WE SEE: TRUMP, HALF ASLEEP, IN HIS UNBUTTONED, DISHEVELED CIVILIAN SUIT SALUTING LIKE A 5 YEAR OLD