Although many companies in France produced fighters during the interwar period, Nieuport manufactured two landmark fighters beginning with the end of World War I. The Ni-D 29 biplane fighter appeared at the end of the war, and was produced for the Aeronautique Militaire during the twenties, as well as in several foreign countries. Export models were also sold to Belgium, Italy, Siam, Argentina, Spain, and Sweden. By the mid twenties, it was obvious that a replacement would be needed soon, and Nieuport then developed a high wing monoplane replacement, the Ni-D 62 series, many of which were built with a small stub wing, making it sort of a biplane. There were numerous variations in the production models, with differences in powerplant, wing arrangement, and fuselage structure. These were first built for the French, but later, many were sold to Spain, Romania, and Brazil. These aircraft served for many years, some being used as trainers as late as 1940. They were not particularly easy to fly, and were used in Spain after they were outdated, but they still were effective fighters under the right circumstances.