Spanish airline Iberia, operated by International Consolidated Airlines Group (otherwise known as IAG) is once again in conflict with its employees. Staff at El Prat airport in Barcelona will be holding six days of strikes on July 27th, August 3rd, 10th, 17th, 24th, and 31st, according to an announcement by the UFG labour union in Spain.According to the announcement, the strikes are in response to Iberia's failure to meet its contractual agreements as a result of outsourcing tasks that have until now been carried out by the airline's own staff.By 14:44 in London, IAG was trading 1.31% lower at 158.3p.MD