Alexei Oleynikov is a Russian historian of World War I. He is a doctor of historical sciences and has written more than 1,000 scientific papers, including 22 monographs, and is a popular military historian of the First World War in Russia. In 2016, he received a letter of thanks from the governor of the Astrakhan region for his success in work and professionalism,[1] and in 2017 he was given the Shield and Sword of the Fatherland award.[2]