France, Sept. 9 -- Serbia's commemoration of the so-called "Butcher of Bosnia", who was buried on Monday in a service attended by thousands, has put Brussels on a collision course with Belgrade, an EU candidate country.

Several Serbian ministers, including the defence and justice ministers, attended, alongside Russia's ambassador to the country, a string of top officials from the Bosnian Serb entity including its President, Sinisa Karan, and his predecessor, Milorad Dodik.

"The images from Ratko Mladić's funeral yesterday in Belgrade were shocking," European Commission president von der Leyen and European Council chief Costa wrote online. Social media post of EU Commission chief Ursula von der Leyen reacting to the funeral of Ratko...