in the campaign “Full-Scale Invasion (from February 24, 2022)”
The invasion by the regular Russian army and massive missile and air strikes on Ukrainian cities: "On 24 February 2022, the President of the Russian Federation, Vladimir Putin, announced his decision to conduct a 'special military operation' in Ukraine to seek its 'demilitarization and denazification'. On the same day, Russian troops crossed various border points into Ukraine, including through Belarus, and launched attacks by land, air and sea"[1]. The UN Commission investigated the events of February-March 2022 in Kyiv, Chernihiv, Kharkiv and Sumy Provinces[1].