Military historian and analyst. Candidate of Sciences in History, specializing in the history of science and technology.

He is the author of 19 books and more than 70 articles.

Public and political activist and officer of the Azov Brigade of the National Guard of Ukraine.

Areas of expertise: wars of the second half of the nineteenth century, World War II and Ukrainian formations in the German armed forces, local wars and conflicts of the second half of the twentieth century, the US war on terrorism in 2001-2009, history of railways.

Books: “The Bayersdorf Battle Group,” “Galician SS Volunteer Regiments, 1943-1944,” “Ukrainian Vikings,” “Ukrainians in the SS Division Viking, 1944,” “Steel Squall. The History of the Seventeen-Year-Old Division, and The Attack of the Light Brigade.

His book “Ukrainian Vikings” became the first book by a Ukrainian historian to be given a separate block in her program on Russia 24 by Russian propagandist Skabeyeva.

He has repeatedly spoken as a guest lecturer at patriotic events and festivals throughout Ukraine.