A US government watchdog says Department of Defense (DoD) officials failed to take appropriate action against staffers who misused government-issued credit cards at casinos and strip clubs.

On Tuesday, the DoD’s inspector general released a report into the May 2015 revelations that military staff had billed the government for nearly $1m in charges at casinos and a further $100k at strip clubs.

The report, which focused on a sample of 30 government cardholders, criticizes DoD management for failing to take action against card abuse even after the abuse was brought to light. The report notes that there were no formal protocols for what constituted legitimate card use, nor any specific disciplinary actions for misuse.

The report also warns that the DoD failed to take into account the potential national security ramifications of Pentagon officials’ “questionable judgment, unwillingness to follow rules and guidance, financial concerns, or gambling addictions.”