'''Perang di Donbass''' (juga disebut '''Perang di Ukraina''' atau '''Perang di Ukraina Timur''') adalah konflik bersenjata yang berlangsung di wilayah [[Donbass]], [[Ukraina]]. Semenjak Maret 2014, demonstrasi oleh kelompok pro-Rusia dan anti-pemerintah pecah di [[Republik Rakyat Donetsk|Oblast Donetsk]] dan [[OblastRepublik Rakyat Lugansk|Oblast Lugansk]] setelah pergerakan [[Euromaidan]] berhasil menjatuhkan pemerintahan [[Viktor Yanukovych]] yang pro-Rusia. Demonstrasi tersebut kemudian berubah menjadi konflik bersenjata antara pasukan separatis [[Republik Rakyat Donetsk]] dan [[Republik Rakyat Lugansk|Lugansk]] melawan tentara pemerintah Ukraina.<ref>{{cite news|url=http://www.kyivpost.com/content/ukraine/armed-pro-russian-insurgents-in-luhansk-say-they-are-ready-for-police-raid-343167.html|title=Armed pro-Russian insurgents in Luhansk say they are ready for police raid|work=Kyiv Post|date=12 April 2014|last=Grytsenko|first=Oksana}}</ref><ref>{{cite news|url=https://ca.news.yahoo.com/ukraine-special-forces-sent-eastern-city-retake-buildings-082049113.html|title=Ukraine to deploy troops to quash pro-Russian insurgency in the east|work=Yahoo News Canada|date=14 April 2014|agency=Associated Press|last=Leonard|first=Peter|access-date=2014-08-03|archive-date=2014-04-14|archive-url=https://web.archive.org/web/20140414125950/https://ca.news.yahoo.com/ukraine-special-forces-sent-eastern-city-retake-buildings-082049113.html|dead-url=yes}}</ref> Para separatis sebagian besar dipimpin oleh warga Rusia.<ref name="REUeuada">{{cite news|url=http://www.reuters.com/article/2014/07/27/us-ukraine-crisis-rebels-insight-idUSKBN0FW07020140727|title=Pushing locals aside, Russians take top rebel posts in east Ukraine|work=Reuters|date=27 July 2014|accessdate=27 July 2014|archive-date=2014-07-28|archive-url=https://web.archive.org/web/20140728013327/http://www.reuters.com/article/2014/07/27/us-ukraine-crisis-rebels-insight-idUSKBN0FW07020140727|dead-url=yes}}</ref> Sukarelawan dari Rusia dilaporkan meliputi 15%<ref>{{Cite web |url=http://rumedia.biz/item/3037 |title=Представитель ДНР назвал процент российских добровольцев в местной армии |access-date=2014-08-03 |archive-date=2014-10-15 |archive-url=https://web.archive.org/web/20141015164343/http://rumedia.biz/item/3037 |dead-url=yes }}</ref> hingga 50-80% kombatan pro-Rusia.<ref>{{Cite web |url=https://m.censor.net.ua/resonance/295448/rossiyiskiyi_naemnik_polovina_opolchentsev_iz_rossii_mne_pomogayut_sponsory_my_vozmem_lvov |title=РОССИЙСКИЙ НАЕМНИК: "ПОЛОВИНА ОПОЛЧЕНЦЕВ - ИЗ РОССИИ. МНЕ ПОМОГАЮТ СПОНСОРЫ. МЫ ВОЗЬМЕМ ЛЬВОВ" |access-date=2014-08-03 |archive-date=2014-07-27 |archive-url=https://web.archive.org/web/20140727190415/http://m.censor.net.ua/resonance/295448/rossiyiskiyi_naemnik_polovina_opolchentsev_iz_rossii_mne_pomogayut_sponsory_my_vozmem_lvov |dead-url=yes }}</ref>.<ref name="REUeuada"/>
