Thales Watchkeeper WK450
The Thales Watchkeeper is an unmanned aerial vehicle (UAV) for intelligence, surveillance, target acquisition, and reconnaissance (ISTAR) used by the British Army. Originally, It was developed by UAV Tactical Systems (U-TacS), a joint venture of Elbit Systems UK and Thales UK, and is based on Elbit's Hermes 450, the production entity came under the full ownership of Elbit Systems in January 2026.