divisions, in both the Waffen-SS and the Heer, the (regular army). Independent battalions and regiments were used by corps to protect the most likely avenues of tank attacks, while divisions would often position their Panzerjäger on the flanks, or use them to support infantry advances against an enemy using tanks. When used with tanks, despite intense inter-branch rivalry, Panzerjäger would work in teams, with the tank crews enticing enemy tanks to fire, disclosing their position, and Panzerjäger engaging the enemy from a defilade. Panzerjäger were often called upon to provide direct high explosive supporting fire to infantry by destroying machine gun and artillery positions, particularly in urban fighting. Vehicle designs Designs of the Panzerjäger vehicles varied based on the chassis used, which could be of three types: Early war open-topped superstructure on a light tank chassis Mid-war fully enclosed crew compartment on a medium or heavy tank chassis, as an added-on entity not usually integral to the original hull armor Late war unarmoured or shielded mounting on a half-track chassis Notable tank destroyers in the Panzerjäger classification were: Panzerjäger I – Czech 4,7cm KPÚV vz. 38 (47 mm PaK) on Panzer I chassis. 4,7 cm Pak (t) auf Panzerjäger Renault R35(f) - 47 mm on Renault R35 Marder I – 75 mm PaK on captured French chassis, the Lorraine 37L. Marder II – 75 mm PaK or reused Soviet 76.2 mm gun on Panzer II chassis. Marder III – 75 mm PaK or reused Soviet 76.2 mm gun on Czech-built Panzer 38(t) chassis. 10.5 cm K gepanzerte Selbstfahrlafette '''Dicker Max' – two prototype as self-propelled bunker buster on Panzer IV chassis tested as anti-tank weapon. Sturer Emil – 12.8 cm Selbstfahrlafette auf VK 30.01(H), reuse of two prototype heavy tank chassis as experimental self-propelled gun. Hornisse/Nashorn – 88 mm PaK on composite Panzer III/Panzer IV chassis.Ferdinand/Elefant – the last Panzerjäger vehicle so designated, incorporating a fully enclosed, casemate added to rejected Tiger I chassis design. The later Jagdpanzer designation was used from the beginning for the following more integrally armored vehicles:Jagdpanzer 38(t) JagdpantherJagdpanzer IVJagdtigerSee also Archer - a British self-propelled anti-tank gun. M56 Scorpion - a US self-propelled gun Notes ReferencesPanzerjäger Brechen Durch! (Tanks Break Through!)'' by Alfred-Ingemar Berndt, an eye-witness account of the battles that led to the fall of France. World War II tank destroyers of Germany