Serbia’s Military Police Special Operation Battalion “Cobras” have adopted the FN SCAR L as their primary carbine and the FN SCAR-H PR as their sniper rifle. They are using these alongside HK UMP 9mm submachine guns, FN SLP shotguns and GLOCK pistols.
Meanwhile to the south the Special forces of Greece have also adopted the FN SCAR L, who appear to be using it alongside M4 Carbines.
UPDATE: I am told that the Greeks pictured may be Special Forces students using airsoft or blank firing rifles for training purposes.
Thanks to Albi and Anonymous for the tip.