444th Imperial Army Tank Regiment
A Tank Regiment, formed to be space-mobile and available to reinforce local Ground Force Command units in an emergency.
In practice, the deployment of the unit tended to mean that any large-scale threat moved elsewhere. The first century-and-a-half of it's existence was relatively quiet -moving from one place things might go wrong to another.
The Regiment was deployed in RQD3 during the Abandonment, supporting the 61st Fleet. The quiet life-ended with the Virus incursions that started in the 1140s and it was heavily engaged in the Antra Pocket War.