[1] During the events related to the annexation of Crimea and military aggression in the East of Ukraine, Kherson became a strategic temporary border city.

During the protests in the East of Ukraine, he expressed his tough position on preventing provocations in Kherson and the impossibility of seizing the city by separatist groups.

[2] We will not meet with bread and salt either local separatists or visiting actors of the separate genre.

On 24 February 2022, the first day of the Russian invasion of Ukraine, Mykolaienko joined a crowd of hundreds of Kherson residents outside the military enlistment office demanding to be given weapons.

[4] In April 2022, Mykolaienko's wife stated that he had been abducted by Russian occupiers in Kherson and his current whereabouts are unknown.