December 31 – Queen Margrethe II of Denmark announces her abdication effective January 14, 2024, after 52 years on the throne.- Yemeni civil war (2014–present) (Wikipedia)
The Yemeni civil war (Arabic: الحرب الأهلية اليمنية, romanized: al-ḥarb al-ʾahlīyah al-yamanīyah) is an ongoing multilateral civil war that began in late 2014 mainly between the Rashad al-Alimi-led Presidential Leadership Council and the Mahdi al-Mashat-led Supreme Political Council, along with their supporters and allies. Both claim to constitute the official government of Yemen.