Doing what, exactly? A show of force that will never be used? Dropping leaflets? Surveillance?
Threat of intimidation - they CAN defend the border by buzzing the crowds that try to storm the walls and also provide lookout if they try to bulb the walls or attack the border guards.
Ah, yes helicopter rotor wash and sand/dry soil. Very effective when trying to get a closer look to see if everyone is “ok”.
Ya learn a thing or two from 34 years of flying H60’s.
Dispersing the stink cloud?
Birds’ eye views can be helpful to those on the ground...why bitch because they aren’t strafing the crowds instead of being glad they are there?