And in the distant future, when humanity has mastered many worlds, the soldier’s craft remains the most popular profession. A native of the Russian-speaking planet, Sergei Petrovsky experienced all the delights of army life firsthand. In a short time, he went through a difficult path from a naive student to a shelled veteran of the mobile infantry. In deadly battles, he was helped to stay alive by his “guardian angel” - a mobile fire support complex numbered 320. From the author: This is a new author’s edition of a previously published novel. The author thanks Alexey Tenebrod for his help in editing the book.