European Commission President Ursula von der Leyen speaks during a joint news conference with the President of the Council of Ministers of Bosnia and Herzegovina Borjana Kristo in Sarajevo, Bosnia, Friday, Oct. 25, 2024. (AP Photo/Armin Durgut)

European Commission President Ursula von der Leyen looks on at the start of her meeting with the members of the Bosnian Presidency in Sarajevo, Bosnia, Friday, Oct. 25, 2024. (AP Photo/Armin Durgut)

European Commission President Ursula von der Leyen arrives at a news conference after talks with Serbian President Aleksandar Vucic at the Serbia Palace in Belgrade, Serbia, Friday, Oct. 25, 2024. (AP Photo/Darko Vojinovic)

European Commission President Ursula von der Leyen adjusts her headset during a joint news conference with the President of the Council of Ministers of Bosnia and Herzegovina Borjana Kristo in Sarajevo, Bosnia, Friday, Oct. 25, 2024. (AP Photo/Armin Durgut)

European Commission President Ursula von der Leyen speaks during a joint news conference with the President of the Council of Ministers of Bosnia and Herzegovina Borjana Kristo in Sarajevo, Bosnia, Friday, Oct. 25, 2024. (AP Photo/Armin Durgut)

Russian President Vladimir Putin and Bosnian Serb political leader Milorad Dodik attend a meeting on the sidelines of the BRICS Summit in Kazan, Russia, Friday, Oct. 25, 2024. (Alexander Kazakov, Sputnik, Kremlin Pool Photo via AP)

European Commission President Ursula von der Leyen, left, shakes hands with Serbian President Aleksandar Vucic after a news conference at the Serbia Palace in Belgrade, Serbia, Friday, Oct. 25, 2024. (AP Photo/Darko Vojinovic)

European Commission President Ursula von der Leyen speaks during a media conference after talks with Serbian President Aleksandar Vucic at the Serbia Palace in Belgrade, Serbia, Friday, Oct. 25, 2024. (AP Photo/Darko Vojinovic)

La presidenta de la Comisión Europea, Ursula von der Leyen, pasa revista a la guardia de honor al llegar al palacio presidencial de Serbia, en Belgrado, el 25 de octubre de 2024. (AP Foto/Darko Vojinovic)

European Commission President Ursula von der Leyen smiles during a joint news conference with the President of the Council of Ministers of Bosnia and Herzegovina Borjana Kristo in Sarajevo, Bosnia, Friday, Oct. 25, 2024. (AP Photo/Armin Durgut)

Members of the Bosnian Presidency Zeljka Cvijanovic, left, Denis Becirovic, center and Zeljko Komsic, right, pose for a photo with European Commission President Ursula von der Leyen, prior to the start of their meeting in Sarajevo, Bosnia, Friday, Oct. 25, 2024. (AP Photo/Armin Durgut)

European Commission President Ursula von der Leyen, front left, walks with the member of the Bosnian Presidency Denis Becirovic, right foreground, prior to the start of their meeting in Sarajevo, Bosnia, Friday, Oct. 25, 2024. (AP Photo/Armin Durgut)

European Commission President Ursula von der Leyen reviews the honor guard with Serbian President Aleksandar Vucic during a welcome ceremony at the Serbia Palace in Belgrade, Serbia, Friday, Oct. 25, 2024. (AP Photo/Darko Vojinovic)