There have been many historically significant terrorist incidents within the United Kingdom , from the Gunpowder Plot of 1605 to the various attacks related to The Troubles of Northern Ireland . In recent history , the UK security services have focused on the threat posed by radical Islamic militant organisations within the UK , such as the cell responsible for the 7 July 2005 London bombings
7 July 2005 London bombings
7 July 2005 London bombings
Terrorism in the United Kingdom