On 26 March 2018 , Croatia expelled one Russian diplomat as a show of solidarity with the United Kingdom which accused Russia of poisoning Sergei and Yulia Skripal . In retaliation , Russia on 30 March banned the chief of staff of the Croatian foreign minister Marija Pejčinović Burić — Rina Eterović Goreta , who had from 2015 until 2017 been Croatia 's chargé d'affaires in Moscow , — from entering its territory in an official capacity . Russia 's choice of person was judged to be a surprise by experts
poisoning Sergei and Yulia Skripal
Poisoning of Sergei and Yulia Skripal
Croatia–Russia relations