From what I’ve seen it’s the second option. My understanding is that it’s a FLF Bde exercise that the LIB is joining NOT an exercise of strategic force projection per se, although obviously elements of it get practiced.
I am not sure we would want to be flying the LIB in after a war has started, I would imagine we would want to get it on the ground before hostilities actually start, same as we flew weapons into UKR prior to the invasion.