What is the view of BALPA and the company Reps with regard to its members being asked to fly the aircraft normally operated by the lisbon based Pilots?
That is
not what happens.
UK pilots have to take empty
UK based aircraft and operate them in Lisbon. If they are contractually obliged to do so and they refuse, they can be dismissed. Meanwhile the striking pilots are protected by their local laws.
There is more to this, of course, but that has been communicated to the UK pilots directly by BALPA.