Guantánamo Bay military personnel have been instructed to inform visitors to the prison facility that the vast majority of detainees held there more than a decade without facing charges use their lawyers and the media to “discredit the U.S. government,” according to PowerPoint slides obtained by Al Jazeera.

The slides also advise military personnel to cast the ongoing hunger strikes waged by the prisoners not as a form of protest against their indefinite detention and treatment, but as one of six “offensive tactics” used by detainees to attack the U.S. government.

The presentation accuses the detainees of engaging in “Information Operations” that include using “media, lawyers and int’l organizations to spread a false message of: mental anguish, inhumane detention conditions, medical mistreatment, abuse,” according to a briefing slide titled “Adversary within the camps.”

More than half of the 149 prisoners at Guantánamo have been cleared for release or transfer by the Bush and Obama administrations, and in the years since 9/11, news reports have shown that some of the men sent to Guantánamo had been sold to the U.S. for bounties, and had never set foot on a battlefield. Last year, scores of detainees launched a hunger strike to protest against their continued detention without trial or charge in a move that attracted worldwide headlines.

The 23 slides were turned over to Al Jazeera in response to a Freedom of Information Act lawsuit filed against United States Southern Command, which has oversight of the joint task force that operates the prison. Navy Cmdr. John Filostrat, a Guantánamo spokesman, said the slide presentation is used to brief "visitors from intergovernmental agencies, military and other official guests."

The slides, which appear to date back to 2012, were used by military investigators to help write a report about the circumstances behind the September 2012 death of a severely mentally ill Yemeni detainee named Adnan Latif.

The report, known as an AR 15-6, or Commander’s Inquiry, concluded that Latif committed suicide by overdosing on powerful antipsychotic medications he was prescribed. However, the report also found that Guantánamo guards contributed to his death by failing to follow numerous protocols set forth in the facility's standard operating procedures.