[1] In 2001 Lytvyn graduated the Tactical operations faculty of National University of Defense of Ukraine.
[1] In 2008 Lytvyn graduated the Strategic operations faculty of National University of Defense of Ukraine.
On August 25, 2012, in Novohrad-Volynskyi Petro Lytvyn attacked activists of "Vidsich" who were distributing leaflets in the "Revenge for division of Ukraine" campaign.
[2][3][4] During the War in Donbas, Lytvyn was placed in charge of the Sector D which was completely destroyed on August 24, 2014, and lead to the tragic events of Battle of Ilovaisk.
[5][6] Since June 19, 2018, he has served as the Ambassador Extraordinary and Plenipotentiary of Ukraine to the Republic of Armenia.