V-2 rocket offensive began on 8 September 1944, when "Lehr- und Versuchsbatterie No. 444" () launched a single rocket guided by a radio beam directed at Paris. Wreckage of combat V-2s occasionally contained the transponder for velocity and fuel cutoff. The painting of the operational V-2s was mostly a ragged-edged pattern with several variations, but at the end of the war a plain olive green rocket also appeared. During tests, the rocket was painted in a characteristic black-and-white chessboard pattern, which aided in determining if the rocket was spinning around its longitudinal axis. The original German designation of the rocket was "V2",
Real Irish Republican Army train stations and halted services on the London Underground. On 21 September a rocket-propelled grenade was fired at the MI6 headquarters using an RPG-22 rocket launcher, which generated headlines around the world. In November 2000, security forces foiled a plot to drive 500 lb of homemade explosives to central London that month, a bomb twice as powerful as the one in Omagh. At the time police were warning for weeks that a terrorist attack in London could be imminent. On 21 February 2001 a bomb disguised as a torch left outside a Territorial Army base in Shepherd's Bush seriously injured