Great pics Too_Cool!

KK is completely correct, in that the casement vehicle above is a WW2 era German Sturmgeschutz III Ausf F, mounting the 7.5 cm Sturmkannone 40 L/48 (and is probably a late variant because it mounts the additional 30mm bolted on frontal armor of the F/8).

Anyway, the StuG III was termed an "assault gun", and although originally conceived as an infantry support vehicle capable of assisting the German Infantry Divisions in their offensive (and defensive) operations, was increasingly employed more as a "Jagdpanzer" (armored anti-tank destroyer). Basically mounting the assault gun version of the PaK40 antitank gun, the latter Stugs had advantages in the anti-armor role because they saved weight by not mounting a tank turret (and it's traversing mechanism), thus allowing heavier armor to be affix compared to the contemporary battle tank variant on the same chassis, the PzKpfw. III series (and this also streamlined production capability too).

The Sturmgeschutz concept was one of the most successful modifications of existing tank designs undertaken during the war years by the Germans, in that it's lower profile, good armor, armament, and mobility made it an excellent defensive weapon, that was still capable of performing it's original role of infantry support.

Many artillery crews of the Sturmgechutzen Brigades and Battalions earned decorations for valor (a number of Knights Crosses being awarded) for their exploits in combat, especially on the Eastern Front!

Again nice pics ToolCool, and the vehicle sports accurate-looking 3-color camo too.