Britain withdraws from Afghanistan at the end of Operation Herrick, after 12 years four months and seven days.

Operation Herrick was the operational name for the British Armed Forces' operations during the War in Afghanistan, from 2002 to the end of combat operations in 2014. It consisted of the British contribution to the multinational NATO-led International Security Assistance Force (ISAF) mission for the purposes of local security, training and development, and support to the American-led Operation Enduring Freedom (OEF) counterterrorism mission. After years in the field, Operation Herrick increased in size and breadth to match ISAF's growing geographical intervention in Afghanistan: British troops numbered 9,500 at its peak in 2010–2012. The operation has also been referred to as the Fourth Anglo-Afghan War.