Landcruiser

From Turtledove

Landcruisers were the Race Conquest Fleet's equivalent of the tank. They were particularly deadly machines, equipped with 4 or 5 inch guns with an auto loader and composite armor, requiring humans to spend enormous numbers of their own tanks and manpower to tackle just one landcruiser. However, the Race's landcruiser-tactics were stagnant compared with human tank tactics.

By the 1960s, human tanks became absolute equals to landcruisers. This was demonstrated in the Race-German War of 1965 when German tanks proved capable of fighting Lizard landcruisers on a one-on-one basis, whereas twenty years earlier the Race had maintained a 5:1 kill ratio in armored combat.