The Nikopol–Krivoi Rog Offensive ( ) was an offensive by the Red Army 's 3rd Ukrainian Front and elements of the 4th Ukrainian Front against the German 6th Army in the area of Nikopol and Krivoi Rog in Dnipropetrovsk Oblast in central Ukraine between 30 January and .

The 9th Corps of the Yugoslav People 's Army ( `` Jugoslovenska Narodna Armija '' – JNA ) led by Colonel Ratko Mladić and the forces of the Serbian Autonomous Oblast ( region ) of Krajina ( SAO Krajina ) under Knin police chief Milan Martić besieged Besieging the Croat-inhabited village of Kijevo in late April and early May 1991 .

The 2015 Kharkiv bombing Attack occurred Coming_to_be on 22 February 2015 , when a bomb hit Attack a Ukrainian national unity rally Social_event in the Ukrainian city of Kharkiv , Kharkiv Oblast .

In December 2013 , two separate suicide bombings Terrorism a day apart targeted Aiming mass transportation in the city of Volgograd , in the Volgograd Oblast of Southern Russia , killing Killing 34 people overall Wearing , including both perpetrators .

On 29 December 2013 , a suicide Killing bombing Attack took place Process_start at the Volgograd-1 station in the city of Volgograd , in the Volgograd Oblast of Southern Russia .

In September 1991 , Bosnian Serbs proclaimed Statement a Serbian Autonomous Oblast with Bijeljina as its capital .

Crossings Motion_directional occurred Coming_to_be both in areas under the control Control of pro-Russian forces and in areas that were not under their control Control , such as the south-eastern part of Donetsk Oblast , near Novoazovsk .

The Volnovakha bus attack Attack was an attack on a highway checkpoint near the village of Buhas outside of the Volnovakha municipality in the Donetsk Oblast , Ukraine on 13 January 2015 .

Kursha-2 ( ) , named so after a road sign , was an industrial community in the Central Meshchyora , Ryazan Oblast , Russia .

The 2009 Nevsky Express bombing Terrorism occurred Presence on 27 November 2009 when a bomb exploded Attack under a high speed train travelling between the Russian cities of Moscow and Saint Petersburg causing Causation derailment near the town of Bologoye , Tver Oblast ( approximately from Moscow ) , on the Moscow–Saint Petersburg Railway .

Inter-ethnic clashes Hostile_encounter between the two broke out Process_start shortly after the parliament of the Nagorno-Karabakh Autonomous Oblast ( NKAO ) in Azerbaijan voted Choosing to unify Cause_to_amalgamate the region with Armenia on 20 February 1988 .

) , near Borki station in the former Kharkov Governorate of the Russian Empire ( present-day Kharkiv Oblast of Ukraine ) , 295 kilometers south of Kursk , when the imperial train carrying Sending Tsar Alexander III of Russia and his family from Crimea to Saint Petersburg derailed Motion at high speed .

Occasional incidents Hostile_encounter happened Presence in surrounding Surrounding regions , like North Ossetia-Alania , Karachay-Cherkessia , Stavropol Krai and Volgograd Oblast .

Contact Communication with the aircraft , a Boeing 777-200ER , was lost Earnings_and_losses when it was about from the Ukraine–Russia border and wreckage of the aircraft fell Motion_directional near Hrabove in Donetsk Oblast , Ukraine , from the border .

Amidst this backdrop , a war Hostile_encounter between Georgia and separatists left Causation parts of the former South Ossetian Autonomous Oblast under the `` de facto '' control Control of Russian-backed but internationally unrecognised separatists .

Due to its high velocity and shallow angle of atmospheric entry , the object exploded Attack in an air burst Motion over Chelyabinsk Oblast , at a height of around .

On 23 March 1994 , the aircraft operating Being_in_operation the route , an Airbus A310-304 flown Self_motion by Aeroflot – Russian International Airlines , crashed Catastrophe into a mountain range in Kemerovo Oblast , Russia , killing Killing all 63 passengers and 12 crew members on board .