Battle with the counterrevolution in Russia

After a series of reverses at the front in May 1918, the Bolsheviks' War Commissar, Trotsky, instituted increasingly harsh measures in order to prevent unauthorised withdrawals, desertions and mutinies in the Red Army. In the field the Cheka special investigations forces, termed the Special Punitive Department of the All-Russian Extraordinary Commission for Combat of Counter-Revolution and Sabotage or Special Punitive Brigades, followed the Red Army, conducting field tribunals and summary executions of soldiers and officers who deserted, retreated from their positions or failed to display sufficient offensive zeal.