Front: 33 in of Federation Battleplate
Sides, Top, and Rear: 12 in of Federation Battleplate
Others: Arena Anti-Missile System, Kontakt-5 Explosive Reactive Armor
33 inch of battleplate would be more than twice as thick than the heaviest tank ever made, which had a total of 8 inches at best, and had a top speed of around 11 Km/H