Relations between French company Dassault and the German unit of Airbus are reportedly ‘very strained’

The leaders of France and Germany have a “strong willingness” to build a new fighter jet together despite bitter internal rivalries, according to the chief executive of engine manufacturer Safran.

A row over who should lead between French aerospace company Dassault and the German unit of Airbus has threatened to break apart the countries’ efforts to make a next-generation fighter jet.