Martin Brest is not a pseudonym, it is the call sign of a fighter in the Armed Forces of Ukraine. He served in the 41st Battalion and later, when they were pulled back, in the 72nd Brigade. 

Upon returning from the war, he became a popular blogger and started writing books. In 2017, his first book about the war, titled “Infantry,” was released. Then, in 2019, the second and third parts, “Infantry 2: Armament” and “Infantry 3: Terricons,” were published. In 2020, his book “Verochka” was published in the genre of military-political satire.