This article deals with the history and development of tanks employed by the military of France from their first use in World War I, the interwar period, during World War II, the Cold War and modern era.
French development into tanks began during World War I as an effort to overcome the stalemate of trench warfare. The Schneider CA1 was the first tank produced by France, and 400 units were built. The French also experimented with various tank designs, such as the Frot-Laffly landship, Boirault machine and Souain experiment. Another 400 Saint-Chamond tanks were manufactured from April 1917 to July 1918, however these tanks were largely underpowered and of limited utility due to the design of the caterpillar tracks, which were too short in comparison with the tank's length and weight. The most significant French tank development during the war was the Renault FT light tank, which set the general layout for future tank designs and was used or redesigned by various military forces, including those of the United States.
While the British began the design and use of tanks in World War I, France at the same time developed its own tracked AFVs, but the situation there was very different. In Britain a single committee had coordinated design, while the major industries remained passive. Almost all production effort was thus concentrated into the Mark I and its direct successors, all very similar in shape. In France, on the other hand, there were multiple and conflicting lines of development which were badly integrated, resulting in three major and quite disparate production types. A major arms producer, Schneider, took the lead in January 1915 and tried to build a first armoured vehicle based on the Baby Holt tractor but initially the development process was slow until in July they received political, even presidential, support by combining their project with that of a mechanical wire cutter devised by engineer and politician Jean-Louis Bréton. In December 1915, the influential Colonel Estienne made the Supreme Command very enthusiastic about the idea of creating an armoured force based on these vehicles; strong Army support for tanks would be a constant during the decades to come. Already in January and February 1916 quite substantial orders were made, at that moment with a total number of 800 much larger than the British ones.