On the detention of a military teacher who turned out to be a "double"**agent working for the FSB and Russian Military Intelligence (GRU)**, informed the safety Service of Ukraine. "His task was to prepare terrorist attacks on the commanders of the Armed Forces of Ukraine, who together with their sub-units were undergoing combat training at the local training centre (polgons in the area of Jaworów in the Lviv region, just close the border with Poland – ed.)", SBU said.