Th e article aims to present the position of the Visegrad Group countries towards the war in Ukraine, which began on February 24, 2022 with the attack of the Russian Federation on this country. On the one hand, the aim is to show the motivation and actions of the authorities of the four Visegrad Group countries towards Russian aggression against Ukraine, as well as the forms and types of assistance provided to Ukraine by each country separately. On the other hand, the aim is to answer the question: how did Hungary’s different position affect cooperation within the Visegrad Group? What are the reasons for Hungary’s different approach to the war in Ukraine and Russia’s policy? It can be observed that the Czech Republic, Poland, and Slovakia presented a pro-Ukrainian position in their actions towards the war in Ukraine, while Hungary, unlike the other Visegrad countries, presented a pro-Russian position, which caused a crisis in cooperation within the Visegrad Group. Slovakia’s attitude changed to a more pro-Russian one after the Smer party, headed by Robert Fico, came to power at the end of 2023. Now we can observe the division of the Visegrad Group into two camps: Polish-Czech and Slovak-Hungarian.