To say about artillery that after nearly 550 days of the Russo-Ukrainian war he is inactive the “god of war” is to say nothing. The word “ultima ratio regis”, already known since the time of Frederick the large and earlier, during the time of Louis XV, as the operative “ultima ratio regum” (“last argument of kings”), was initially coined to mention to barrel artillery. Jerzy Reszczyński writes about the past of Polish artillery since the 14th century, as well as the Polish contribution to artillery art.