This military-historical essay on the war in Korea 1950-1953. was developed back in the 1950s by a team of authors led by S. S. Lototsky and was a closed work intended for generals and officers. The book tells about the events that for many years were hidden behind the vulture of secrecy from a wide range of readers, as well as about the lessons and results of the first post-war "test of strength" in the local conflict.