The Vereinigung Cockpit union is increasing the pressure in the labour dispute at Lufthansa subsidiary Discover Airlines and has, for the first time, called on Lufthansa long-haul pilots to strike for their Discovery colleagues. The support action, announced on Friday, is limited to the Boeing 787 sub-fleet, which only comprises a few aircraft. Five departures from Frankfurt between 8 am (0700 GMT) and 12 pm (1100 GMT) on Monday will be subject to strike action. Other departures with other aircraft types are not affected. Passengers on cancelled flights would be informed immediately and rebook…