The diplomatic relations between Hungary and Ukraine have deteriorated following the suspension of Russian oil flows, which has led Hungary to block new European Union measures aimed at supporting Ukraine. Slovakia has also responded by halting emergency electricity supplies as a result of the oil transit disruption. This situation has highlighted the ongoing geopolitical tensions in Central Europe regarding energy dependence on Russia, especially as both Hungary and Slovakia have refineries primarily adapted to Russian oil supply.

The Druzhba oil pipeline, which was built during the Soviet era, has been a vital supply route connecting Russia to several Central European countries. Since late January, the flow of oil has been halted due to damages reportedly inflicted by Russian drone strikes on infrastructure in Ukraine, specifically targeting pump stations and control systems. While Ukraine maintains that these attacks have rendered transit physically impossible, Hungarian Prime Minister Viktor Orbán has cast doubt on this explanation, suggesting that Ukraine is wielding energy policy as a political weapon.

The consequences of this standoff are significant, as Orbán declared that diplomatic relations have reached a low point, with Ukraine demanding Hungary abandon Russian energy resources, contribute financially to Ukraine's cause, and support Ukraine's EU membership aspirations. This impasse reflects the complex interplay of energy politics and regional alliances within the context of the ongoing conflict in Ukraine and the broader geopolitical landscape in Europe.