In which oblasts of Ukraine did the Sparta Battalion fight the Ukrainian army?
Arsen Pavlov: Arsen (Arseny) Sergeyevich Pavlov (Russian: Арсе́н Серге́евич Па́влов ; 2 February 1983 – 16 October 2016), known by his "nom de guerre" Motorola (Моторо́ла), was a Russian citizen who led the Sparta Battalion, an armed group fighting the Ukrainian army, in the ongoing War in Donbass. War in Donbass: The War in Donbass is an armed conflict in the Donbass region of Ukraine. War in Donbass:  From the beginning of March 2014, protests by pro-Russian and anti-government groups took place in the Donetsk and Luhansk oblasts of Ukraine, together commonly called the "Donbass", in the aftermath of the 2014 Ukrainian revolution and the Euromaidan movement.
Donetsk and Luhansk