
An uncrewed vehicle or unmanned vehicle is a vehicle without a person, including a passenger, on board. Uncrewed vehicles can either be under telerobotic control—remote controlled or remote guided vehicles—or they can be autonomously controlled—autonomous vehicles—which are capable of sensing their environment and navigating on their own.[citation needed]
It has been reported that the armed forces of more than 100 countries have approximately 170 different types of drones in service.
There are different types of uncrewed vehicles: