Factbox: Europe's ongoing strike-related travel disruptions

European airports are in for another busy summer as passenger numbers globally recover to pre-pandemic levels. Airlines have said they are ready to avoid a repeat of last year's travel chaos, after strikes and staff shortages forced them to cancel thousands of flights to avoid long queues at major airports. But air traffic control strikes, which have caused airlines to demand protections for overflights, and walkouts by airline and airport staff have continued to disrupt flights into the key tourism season. Story includes a summary of recent developments.<br/>