France, Sept. 26 -- France, Germany and Spain are struggling to keep their ambitious next-generation fighter jet project on course, with Paris now warning it is prepared to forge ahead on its own if no agreement can be reached with Berlin and Madrid.

Launched in 2017 by France and Germany and later joined by Spain, the Future Combat Air System - known by its French acronym Scaf - is designed to deliver Europe's next flagship fighter aircraft, alongside drones and a "combat cloud" network that connects all vehicles.

But what was once touted as a model of European cooperation now looks mired in deadlock.

Business news service Bloomberg recently reported that Berlin is even considering sidelining France's Dassault Aviation altogether, pos...