DAVOS, Jan. 25 – Tackling of corruption has to be the top priority task for the Ukrainian authorities, otherwise the credit and confidence of international partners will be lost, said former European Commission President Jose Manuel Barroso during Davos Ukrainian Breakfast on January 22.

Barroso, who was the EU Commission president in 2004-2014, told representatives of the Ukrainian authorities that if the problem of corruption is not resolved, then the international community, the EU, and the U.S. won't accept Ukrainian success.