Tank-1 Respuksa

The Tank-1 Respuksa is the Shalaskan Federation's Main battle tank which was first designed before The First Great War on 18/02/1922 and then first constructed on 20/05/1922. The Tank-1 Respuksa Is the world's first tank to have a full rotational turret and an effective gear system which in turn gave this vehicle a high torque.
The Respuksa was made when the Passivarian Republic gave the Shalaskan Federation a production license of the M-45 Grinder. The Shalaskan Federation in the past has dabbled extensively on rotational turrets primarily for fortress defenses and so they designed a turret that could fit on top of the M-45 Grinder chassis. The design came out better than expected then they removed the side guns to replace with extra armor plating and shortened the ammo storage bay to fit a better gearbox mechanism to enhance the torque to go uphill.
The Respuksa since then has been through multiple generations with the same rough base design but has been modified with better armor, better engine mechanics and better weapons to allow the said vehicle to move up to the modern-day and still remain is relevance.