For trips that fall within training schedules, I usually just schedule a couple easy/rest days before and after.
Beforehand, my priority would be to be recovered for the trip, especially the longer one. For afterward, I’d want to be recovered enough in order to resume the max strength workouts and reap the biggest benefits.
For scheduling, I would just shift workouts forward to accommodate the trips if you can or, if you have a definite deadline that your training for, abbreviate the training periods as necessary.
I hope that helps.