 Complete the following phrase:  CNN presented a video from a large separatist rally held in a central Donetsk city square around lunchtime on 26 May. Lorries in the square carried armed Chechen paramilitaries. Two told a CNN team they were from the Chechen capital, Grozny, and one indicated that he was formerly a policeman in Chechnya and was in Donetsk to serve the Russian Federation. Russian and Ukraini media published numerous reports on bodies of separatists being transported secretly back to Russia, usually through Uspenka border pass. A few names of the killed volunteers were establishedSergey Zhdanovich Сергей Жданович, Yuri Abrosimov Юрий Абросимов, Aleksey Yurin Алексей Юрин, Alexandr Efremov Александр Ефремов, Evgeny Korolenko Евгений Короленко. The bodies were transported to Russian military base in Rostov-on-Don. Some of the families were able to get the bodies secretly returned to them. Most of the killed had past military experience. According to the journalists Russian military commissariats voyenkomat in Rostov were actively recruiting volunteers for Donbas among former soldiers, especially with specific skills ATGM, SAM, AGS-17 and those previously serving in 