Wikipedia contributors. (2024, February 23). 2023. In Wikipedia, The Free Encyclopedia. Retrieved February 24, 2024, from https://en.wikipedia.org/w/index.php?title=2023&oldid=1209703169
Finland became a member of NATO on 4 April 2023, though it participated in the NATO Response Force before becoming a member.
February 18 – Kizlyar church shooting: a man carrying a knife and a double-barreled shotgun opens fire on a crowd at an Orthodox church in Kizlyar, Dagestan, killing five women and injuring several other people; the perpetrator is shot and killed by police.