The Grazer tanks, named after a blockbuster movie of the 20th century, first saw action when the Americans deployed them in the Second Soviet Civil War. They were the first mobile units with the power generation capability to use energy weapons in a combat situation, and their cargo/infantry bays allowed them to bring in boots on the ground and to protect persons that the Americans deemed worthy of saving.
         The basic Grazer tanks have remained in action ever since, their ability to fight without resupply highly valued by force commanders lucky enough to get them. Less common are the modern heavy Grazer tanks first designed for use by the Dragon in 3067. Carrying a heavy particle cannon with as much firepower as a Clan particle cannon. The heavy Grazers aren't as mobile as their smaller cousins, especially the hovercraft, but formations of heavy Grazers have proven very dangerous to any enemy.
         Common in the Draconis Rifts and the Free Worlds League, the major militias of most planets in those regions use them. They are very rare outside those regions though where stockpiles of the heavy particle cannons, and the techs that know how to work on them, are much harder to find.