Skywatch

Skywatch was London’s primary defence against incoming missiles. Though it could in no way prevent the detonation of a payload, it instead took out the inbound projectile’s propulsion, by way of immensely powerful lasers, as it crested the horizon, causing it to fall far short of its target.
Because of sabotage, it was operating at only 60% efficiency when the Great War ignited, and its subsequent failure was inevitable. Whether the system would have been able to cope with the high number of weapons being fired off in 2077 and successfully protected the British Capital will never be known.

Skywatch’s design is inspired, not by the Millennium Dome that currently sits on the bank of the Thames, but the “Dome of Discovery” from the 1951 Festival of Britain.