NATO members meet in Lisbon, Portugal, to discuss progress in the War in Afghanistan and relations with Russia.
Portuguese authorities announce that restaurants and non-food shops in Albufeira, Lisbon and Sesimbra will close on weekends at 3:30 p.m. while supermarkets and other food outlets will close on weekends at 7:00 p.m. as part of measures to reduce the spread of COVID-19 in the region.
Prime Minister Boris Johnson announces that the UK's nuclear weapon arsenal will increase from 180 to 260 warheads, and that the UK will shift its foreign policy focus to the Indo-Pacific region, while remaining committed to NATO. The government's review also identifies Russia as the "most acute threat" to British security.
NATO foreign ministers, meeting at NATO headquarters in Brussels, Belgium, agree to extend the alliance's Resolute Support Mission, that trains, advises and assists Afghanistan's military beyond 2016.
Turkish F-16 fighter jets shoot down a Russian Sukhoi Su-24 aircraft that had allegedly infringed its airspace near the Syrian border. Russia's Ministry of Defence denies the Su-24 entered Turkish airspace and initially said it was shot down by ground fire over Syria's Latakia Governorate. A video emerged of one pilot killed as local rebel Turkmen fighters shot at him while he was parachuting and a video of his body, while the fate of the other pilot is unknown but is presumed dead. A combat search and rescue mission by Russian forces failed to reach them. It is the first time a NATO member has shot down a Russian plane since the 1950s.
Five members of the NATO-led coalition die and five others are injured in a non-combat helicopter crash in Kabul. The Associated Press reported the chopper collided with a monitoring balloon on landing. Nationalities weren't identified by NATO's Resolute Support; the British said two were Royal Air Force personnel.