Shock troops Shock troops or assault troops are formations created to lead an attack . " Shock troop " is a loose translation of the German word " Stoßtrupp " . Military units which contain assault troops are typically organized for mobility with the intention that they will penetrate through enemy defenses and attack into the enemy ' s vulnerable rear areas . Although the term " shock troop " became popular in the 20th century , the concept is not a new one , such as the utilization by late Medieval armies of the " forlorn hope " . Presently , the term is rarely used as the strategic concepts behind it have become standard contemporary military thinking . Before World War I . Grenadier s originated as specialized assault soldiers for siege operations . First established with a distinct role in the mid - to late - 17th century , grenadiers were soldiers who would throw grenade s and storm breaches while leading the forefront of a breakthrough . Even when the original black - powder grenade was abandoned , the grenadier companies and regiments were retained as specialist assault troops . The American Civil War saw units of shock troops fielded by both the Army of the Potomac and the Army of Northern Virginia . The Iron Brigade and Irish Brigade spearheaded many of the Union ' s most dangerous attacks . For the CSA , the Texas Brigade and Virginia ' s Stonewall Brigade had similar functions . Between the war ' s beginning in 1861 and its end in April 1865 , all of these elite units suffered heavy casualties with their roles being eliminated several times over . During the Paraguayan War between the former and Brazil , Uruguay and Argentina , the Paraguayans would deploy shock troops composed of a mixture of dismounted cavalry and fit men who were able to row and swim , armed with sabres , cutlasses , knives , bayonets , pistols and hand grenades . They were used to attack small , fortified positions and to board Brazilian river steamers . World War I . During World War I all combatants faced the deadlock of trench warfare . On the Western Front in 1915 , the Germans formed a specialized unit called the Rohr Battalion to develop assault tactics . During the Brusilov Offensive of 1916 , the Russian general Aleksei Brusilov developed and implemented idea of shock troops to attack weak points along the Austrian lines to effect a breakthrough , which the main Russian Army could then exploit . The von Hutier tactics ( infiltration tactics ) called for special infantry assault units to be detached from the main lines and sent to infiltrate enemy lines , supported by shorter and sharper ( than usual for WWI ) artillery fire missions targeting both the enemy front and rear , bypassing and avoiding what enemy strong points they could , and engaging to their best advantage when and where they were forced to , leaving decisive engagement against bypassed units to following heavier infantry . The primary goal of these detached units was to infiltrate the enemy ' s lines and break his cohesiveness as much as possible . These formations became known as Stosstruppen , or " shock troops " , and the tactics which they pioneered would lay the basis of post - WWI infantry tactics , such as the development of fire team s . Notwithstanding the postwar status of the Storm Troopers in German service , the same sort of tactical doctrine was widely espoused in British and French service in late 1917 and 1918 , with variable results . The British Army standard training manual for platoon tactics , SS 143 , was used from February 1917 onwards and contained much of what was standard for German shock troops . According to Ward , the Australian and Canadian divisions deployed amongst British forces in France quickly came to be regarded as the best shock troops in the Allied ranks due to their ferocity in battle , and were employed accordingly . World War II . During World War II the Red Army of the Soviet Union deployed five Shock armies . Many of the units which spearheaded the Soviet offensives on the Eastern Front from the Battle of Stalingrad to the Battle of Berlin were Shock Armies . Shock Armies had high proportions of infantry , engineers and field artillery , but with less emphasis on operational mobility and sustainability . Soviet Shock Armies were characterized by a higher allocation of army - level artillery units to break German defense positions by weight of fire , and often had heavy tank regiments or heavy self - propelled gun regiments to add additional direct fire support . Once a breach in the enemy tactical position was made , more mobile units such as tank and mechanized corps would be inserted through the Shock Army ' s positions with the mission of penetrating deep into the enemy rear area . By the end of the war , though , Soviet Guards Armies typically enjoyed superior artillery support to that of the shock armies . Well - known Shock Armies include the 2nd Shock Army , which spearheaded several offensives in the Leningrad area , and the 3rd Shock Army , which played a key role in the Battle of Berlin . A Soviet ad hoc combat group was a mixed arms unit of about eighty men in assault group s of six to eight men , closely supported by field artillery . These were tactical units which were able to apply the tactics of house to house fighting that the Soviets had been forced to develop and refine at each " Festungsstadt " ( fortress city ) they had encountered from Stalingrad to Berlin . The Yugoslav Partisans also established " Shock " units during World War II , commencing in February 1942 . These were initially created as company and battalion sized units , and later grew into brigades . After World War II . The demands of infantry fighting in the Second World War erased much of the romance of ' shock ' troops , particularly when any well - trained infantry was capable of the same tactics , particularly in a formal assault on a well - defended objective . The Soviets retained the term ' Shock ' ( although the term can also be translated as ' Strike ' ) as a designation for armies involved in assaulting the enemy ' s operational depth as part of Soviet deep battle .