Chairman of Bosnia and Herzegovina's (BiH) Presidency Dragan Covic (R) and European Commission President Jean-Claude Juncker attend a joint press conference in Sarajevo, Bosnia and Herzegovina, on Feb. 28, 2018. Chairman of Bosnia and Herzegovina's (BiH) Presidency Dragan Covic and Chairman of BiH Council of Ministers Denis Zvizdic have officially handed the answered EU accession questionnaire to European Commission President Jean-Claude Juncker here on Wednesday. (Xinhua/Haris Memija)