KP, let me have a go at writing that leaflet.
Dear passenger,
We, the British pilots based in Portugal, plan to disrupt your travel by striking over Christmas. The reason for the strike is that we were promised that we only had to do 2 years in this place, but now our managers are telling us it has to be more before we can escape back to our beloved homeland.
It is with regret that we have to tell you that your flights will be legally operated by UK crews on UK aircraft, and in fact you will suffer no disruption at all to your Christmas travel. Not even a 10 minute delay. The pro-employer UK laws make it impossible for UK crews to refuse these duties.
We invite you to join our plight to get out of this dump and back to the UK by, er, by....
KP, sorry, maybe you could finish the leaflet for me.