Ukraine's state security service, the SBU, is one of the first law enforcement agencies that engaged the enemy in Donbas conflict in spring 2014; back then, an SBU serviceman deceased in combat in Sloviansk, Donetsk region in April 2014.
This was mentioned in the video, released by the SBU press service on its Youtube channel - and timed to the anniversary of the beginning of the counter-terrorism operation in eastern Ukraine.
The SBU reiterated that the counter-terrorism operation in Donbas appeared effective, given the overall progress; over 6,000 Russian soldiers deceased in Ukraine, and the militant-held area shrunk in size.
'Over the last four years, the SBU turned into a modern effective specuial service; it learned how to act one step ahead of its adversaries,' the message of the press service says.
The armed conflict in eastern Ukraine began in April 2014. Since military actions began, thousands of civilians left their homes in Donetsk and Luhansk regions, becoming internally displaced persons.
More news about Ukraine at 112.international.