RIYADH- German carrier Lufthansa and the Swiss International Air Lines announced yesterday the merger of their Saudi operations. The move follows the process of Lufthansa’s laking over the Swiss airline and its eventual integration into the Lufthansa Group, which was first announced early last year. “Our integration processes are working very successfully,” said Joachim Steinbach, Lufthansa’s regional vice president, during a press conference yesterday. “We will emerge stronger from the consolidation process in the Kingdom.