US President Donald Trump expressed outrage after Ukraine damaged a Russian oil pipeline that supplies Hungary, and reportedly threatened to take action against Slovakia. The incident occurred on August 13 when Ukrainian drones hit the Druzhba pipeline, which carries Russian oil through Ukrainian territory to Central Europe’s countries including Slovakia and Hungary. According to a letter, Trump wrote to Hungarian Prime Minister Viktor Orbán: “I do not like hearing this. I am very angry about it. Tell Slovakia,” the US president said, adding “You are my great friend.”
Source: https://www.politico.eu/article/donald-trump-ukraine-viktor-orban-russia-oil-pipleline-drone