The United Kingdom has so far been a setting in the Deus Ex: Icarus Effect novel, with various characters and organisations originating from it. From the 18th to the mid-20th century the United Kingdom was the most powerful nation on Earth. It remains one of the few global powers throughout the 20th century and the 21st.
In 2027, the United Kingdom appears to be a global center for banking, biological research and security consulting.
Mercenary troops working for the London-based Belltower Associates PMC fought in the Australian Civil War, and their Spec-ops supported the Tyrants during the attack on Sarif Industries headquarters in Detroit.
Delegates from the United Kingdom were amongst those invited to Hugh Darrow's speech at Panchaea.