On February 23, 2021, two coronavirus vaccines were registered in Ukraine: AstraZeneca and Pfizer–BioNTech. On February 24, the first person was vaccinated. Russian invasion of Ukraine On 24 February 2022, Russia, using its own territory along with the territory of Belarus, invaded Ukraine, with Russian president Vladimir Putin announcing a special military operation. He associated Ukraine with Nazism as a justification of his attack. He had amassed a large force of troops along Ukraine's border previous to a ground invasion. This was condemned by many countries globally, and Russia was heavily sanctioned as a result of this. This also caused Europe's largest refugee crisis since WWII. The war has also been supported by the separatist quasi-states the Donetsk PR and the Luhansk PR. As of September 2022, the Ukrainians under president Volodymyr Zelenskyy have launched a successful counterattack in the northeast. References Further reading Modern Ukraine . . . . Modern history Ukraine +Ukraine + Ukraine