section_path: Abstract
section_name: Abstract
paragraph_text: The Russo-Ukrainian War began in February 2014 and is ongoing. Following Ukraine's Revolution of Dignity, Russia occupied and annexed Crimea from Ukraine. It then supported Russian paramilitaries who began a war in the eastern Donbas region against Ukraine's military. In 2018, Ukraine declared the region to be occupied by Russia. These first eight years of conflict also included naval incidents and cyberwarfare. In February 2022, Russia launched a full-scale invasion of Ukraine and began occupying more of the country, starting the biggest conflict in Europe since World War II. The war has resulted in a refugee crisis and hundreds of thousands of deaths.
  
  In early 2014, the Euromaidan protests led to the Revolution of Dignity and the ousting of Ukraine's pro-Russian president Viktor Yanukovych. Shortly after, pro-Russian protests began in parts of southeastern Ukraine, while unmarked Russian troops occupied Crimea. Russia soon annexed Crimea after a highly disputed referendum. In April 2014, Russian-backed militants seized towns and cities in Ukraine's eastern Donbas region and proclaimed the Donetsk People's Republic (DPR) and the Luhansk People's Republic (LPR) as independent states, starting the Donbas war. Russia covertly supported the separatists with its own troops, tanks and artillery, preventing Ukraine from fully retaking the territory. The International Criminal Court judged that the war was both a national and international armed conflict involving Russia, and the European Court of Human Rights judged that Russia controlled the DPR and LPR from 2014 onward. In February 2015, Russia and Ukraine signed the Minsk II agreements, but they were never fully implemented in the following years. The Donbas war became a static conflict likened to trench warfare; ceasefires were repeatedly broken but the frontlines did not move.
  
  Beginning in 2021, there was a massive Russian military buildup near Ukraine's borders, including within neighbouring Belarus. Russian officials repeatedly denied plans to attack Ukraine. Russia's president Vladimir Putin voiced expansionist views and challenged Ukraine's right to exist. He demanded that Ukraine be barred from ever joining the NATO military alliance. In early 2022, Russia recognized the DPR and LPR as independent states. While Russian troops surrounded Ukraine, its proxies stepped up attacks on Ukrainian forces in the Donbas.
  
  On 24 February 2022, Putin announced a " special military operation " to "demilitarize and denazify" Ukraine, claiming Russia had no plans to occupy the country. The Russian invasion that followed was internationally condemned; many countries imposed sanctions against Russia, and sent humanitarian and military aid to Ukraine. In the face of fierce resistance, Russia abandoned an attempt to take Kyiv in early April. In August, Ukrainian forces began liberating territories in the north-east and south. In September, Russia declared the annexation of four partially-occupied provinces, which was internationally condemned. Since then, Russian offensives and Ukrainian counteroffensives have gained only small amounts of territory. The invasion has also led to attacks in Russia by Ukrainian and Ukrainian-backed forces, among them a cross-border offensive into Russia's Kursk region in August 2024. Russia has repeatedly carried out deliberate and indiscriminate attacks on civilians far from the frontline. The International Criminal Court (ICC) opened an investigation into war crimes and issued arrest warrants for Putin and several other Russian officials.