A brief motivational video released by Ukrainian Forces shows the HIMARS launchers en route to new firing positions to shell Russian forces. They're moving the vehicles in broad daylight.

Ukrainian forces apparently have zero fear of their HIMARS launchers becoming the target of Russian aerial attacks. Either they're defending the hell out of these systems with anti-aircraft equipment, or they're operating them specifically in places where they are in full control of the sky.

These systems are extremely high-value targets for Russian forces, so I just found it most interesting that the Ukrainians are moving them in broad daylight and firing them with very limited overhead cover.