Croatian President Kolinda Grabar-Kitarovic (1st R, front) and German President Frank-Walter Steinmeier (2nd R, front) attend a welcoming ceremony in Zagreb, capital of Croatia, March 21, 2019. Croatia is the "bridge" between the European bloc and the Southeast European countries with which it joins the common past, said German President Frank-Walter Steinmeier, who is on an official two-day visit to Croatia, here on Thursday. (Xinhua/Goran Stanzl)