Leaders attend EU summit in Brussels, Belgium

Slovak Prime Minister Peter Pellegrini, Latvian Prime Minister Krisjanis Karins, Lithuanian President Gitanas Nauseda, and Romanian President Klaus Iohannis (from L to R) attend a group photo session during an EU summit at the EU headquarters in Brussels, Belgium, Dec. 12, 2019. The two-day summit kicked off here on Thursday. (Xinhua/Zheng Huansong)