The United States of America is the world leader in drone technology by a wide margin. The United States military has extensive knowledge of the architecture, design and application of UAV technology thanks to a decade of intensive operational work with drones. Israel is now the world's largest exporter of drones and has established subsidiaries in other countries, including Columbus, Mississippi. Israeli companies export drone technology to at least 24 countries, including the United States.
Israeli drone technology, like all its military development, is largely subsidized by US taxpayers in the form of billions of dollars of annual military aid. Amid its continuous economic development and military modernization, China has become one of the few world leaders in the development of unmanned systems.