![Frankfurt airport. A union has called on Lufthansa ground staff at seven German airports to walk off the job for a day on Tuesday. AP](https://thenational-the-national-prod.cdn.arcpublishing.com/resizer/v2/USDEJF4B4DYPDSISN3KWIZGWAA.jpg?smart=true&auth=fe0b0f14cd27dd39d127b3b24413eeaa8a4762b2167d8cd63f1d490e1856ed7a&width=400&height=225)
Frankfurt airport. A union has called on Lufthansa ground staff at seven German airports to walk off the job for a day on Tuesday. AP
Frankfurt airport. A union has called on Lufthansa ground staff at seven German airports to walk off the job for a day on Tuesday. AP
Lufthansa ground crew to strike at seven German airports
Nearly 1,000 flights face cancellation as union calls for 12.5% pay rise