The band were formed in 1981 by Steve Pegrum, and were named in tribute to the events of the Kronstadt rebellion during the 1917 Russian revolution. The band moved away from their original anarcho-punk roots towards the mid 1980s, and began to incorporate influences from glam rock as well as acts such as Johnny Thunders. KU finally split up in 1986.
The band released two EP's, "The Unknown Revolution" (Spiderleg Records) and "Part of the Game" (Dogrock Records), and also appeared on volume two of the Bullshit Detector series of compilations released by Crass Records. A 23 track retrospective CD, Insurrection, which includes most of the bands recordings such as demo-tapes, etc, was released in November 2000.