Unmanned Aerial Vehicles (UAVs), commonly known as drones, are aircraft that operate without a human pilot on board. They can be controlled remotely or fly autonomously using pre-programmed flight plans. UAVs are used in various fields, including military operations, agriculture, and surveillance, due to their ability to access hard-to-reach areas and gather data efficiently. These vehicles come in different sizes and designs, ranging from small consumer drones to large military-grade models. UAVs are equipped with various technologies, such as GPS, cameras, and sensors, allowing them to perform tasks like aerial photography, mapping, and monitoring environmental changes.