A drone is an autonomous vehicle possessing distributed decision making capability and designed for mission expendability. The term excludes large autonomous vessels where a Synth is generally not distributing control across multiple vehicles, as well as very small distributed control systems such as motes. Drones are produced for commercial and military use by most terrestrial and off-earth polities, however the high volume low control sophistication of the manufacturing process lends itself to highly concentrated low cost supply chains, resulting in the majority of drones being produced in a few global hotspots. The largest are Drone Valley in Bengaluru, Shenzhen's Drone Alley in Greater Zhōngguó, 12Quans factory cities in Iran and the greater Fatimid Trade Caliphate, Istanbul and Ankara in Türkiye. There are also some more sophisticated but lower volume drone manufacturing centers, the most notable are in Haifa, Israel as well as several in the US across Texas, California, Arizona, and North Carolina.