Returned To Unit or RTU refers to a military member being returned to their home base or home unit, either due to their being medically unfit, their requesting to be withdrawn from training, or their being unfit for training or otherwise disorderly. As military members can only be court-martialed at their home base or unit, being RTU'd for misconduct can often be a precursor to further judicial punishment. The term Returned To Unit (RTU) is used in the Canadian Forces and the UK.