Complex sentence: In order to reduce development costs and boost prospective sales, France entered into an arrangement with four other European nations to produce an agile multi-purpose fighter, but subsequent disagreements over workshare and differing requirements led to France's pursuit of its own development program.
Split into simpler sentences: In order to reduce development costs and boost prospective sales, France entered into an arrangement with four other European nations to produce an agile multi-purpose fighter. Subsequent disagreements over workshare and differing requirements led to France's pursuit of its own development program.