Terrorist attacks in the UK have occurred at various times, often targeting crowded public spaces. Notable incidents include the London Bombings in 2005, where coordinated explosions on the subway and a bus resulted in numerous casualties. More recently, the Manchester Arena bombing in 2017 during a concert led to significant loss of life and injuries. The UK government has implemented various security measures to prevent such attacks, including increased surveillance and counter-terrorism operations. Organizations like MI5 work to identify and disrupt potential threats, aiming to protect citizens and maintain public safety in the face of evolving risks.