MELBOURNE, Australia — The Facebook page featured memes making light of rape, domestic violence and child sexual abuse — and at least 100 members of the Australian Defense Force, past and present, were found to have “liked” it.

This week, the Victims of Abuse in the Australian Defense Force Association, an advocacy group, made public its research into the military-themed Facebook page, called Snafu. On the page, users had published memes and comments joking about rape, necrophilia and child sexual assault.

In analyzing 8 percent of the page’s fans, the association said it had identified more than 100 active and former members of the Australian military, as well as personnel from the armed forces of the United States, Singapore, South Africa, Belgium and Canada. The group also found that the page had been “liked” by an elected member of a City Council in South Australia.

“One of the memes was that of a black-and-white photo of a young girl hanging herself,” said Jennifer Jacomb, the advocacy group’s secretary and public officer. “And it reads, on the left-hand side, ‘If you rape them correctly, you don’t have to kill them – they’ll kill themselves.’” Another meme joked about a child performing sexual acts on his father, Ms. Jacomb said.