The radial-engined Bloch MB.152 offered the greatest aerial resistance to the German invasion in 1940 despite the fact that they were completely outclassed by the older Bf 109E. In a rather humiliating occurrence, the prototype failed to take off the ground on first flight and later entered service though in pathetically few numbers to offer any substantial opposition to the coming onslaught; many aircraft which had been delivered by 1940 even lacked propellers and gunsights making them completely unfit for service. In spite of these production problems, they gave a good account of themselves in battle, shooting down more German aircraft (at least 146 confirmed victories with another 34 probables) than any other French aircraft type and doing it with a substantially favoriable kill ratio. The MB.152 was also used by Vichy France, Germany (as trainers), Greece, and Romania after the surrender.

The prototype MB.150-01 attempted flight on 17 July 1936 but suprisringly failed to take off. A modified type was then flown successfully the following year and was followed the the production variants MB.151 and MB.152 which differed in engine model the result being a signficant gap in performance which had the MB.151 end up used mostly for training duties. Different powerplant combinations resulted in the MB.153 equipped with Pratt & Whitney Twin Wasp engines and the considerably improved MB.155 with longer range which began to be delivered just before the surrender but saw little combat.