Russian invasion of Ukraine
On 27 February, President Putin ordered Russia's nuclear deterrent forces to be on "special alert" because of "aggressive statements" by NATO. That same day, President Zelenskyy announced that the Ukrainian and Russian officials had agreed to meet, without conditions. That same day, a Russian airstrike killed over 70 Ukrainian soldiers at a military base in Okhtyrka. Russian soldiers have been accused of killing civilians and the using of cluster bombs on civilians - which may be seen as war crimes.