2023 Philippine airspace closure The Civil Aviation Authority of the Philippines closes the country's airspace for nearly six hours due to a power outage in its air traffic management center, affecting more than 280 commercial flights and more than 56,000 passengers.
Third inauguration of Luiz Inácio Lula da Silva Luiz Inácio Lula da Silva is sworn in as President of Brazil for the third time in his political career.
Enlargement of the eurozone Croatia changes its national currency from the kuna to the euro to become 20th member state of the Eurozone, and joins the European passport-free zone, the Schengen Area.
Climate change in the United Kingdom The British arm of climate protest group Extinction Rebellion announces it will "temporarily" shift away from using public disruption as a primary tactic.
COVID-19 pandemic Australia and Canada announce that they will require travelers from China to present a negative COVID-19 test in order to enter their countries beginning on January 5.
Stampede At least nine people are killed and many others are injured during a stampede at a concert in Kampala, Uganda.
2021–2023 inflation surge Canada enacts a law prohibiting foreigners, except for immigrants and permanent residents, from acquiring residential areas in the country for two years in response to a real-estate bubble.
Israeli–Palestinian conflict Two Palestinians are killed and three more injured during confrontations with Israeli soldiers who stormed Kafr Dan to demolish the homes of two Palestinians killed in a shootout at a checkpoint in Jenin several months ago.
Mexican Drug War Ten prison officers and four inmates are killed in an armed attack on a prison in Ciudad Juárez, Chihuahua, Mexico, in which 24 prisoners escaped.
Kashmir conflict Four civilians are killed and six others injured when two gunmen open fire against Hindu people's homes in Rajouri district, Jammu and Kashmir.
Syrian civil war Two soldiers are killed during a series of Israeli airstrikes at Damascus International Airport.
Afghanistan conflict Several people are killed by an Islamic State bombing at a checkpoint outside the military airport in Kabul.