: In Australian military contexts, "RAR" stands for the Royal Australian Regiment , often mentioned in stories of veterans (sometimes called "Opa" by their grandchildren) serving in operations like Borneo, Vietnam, or Iraq.
: In the space year 6216, a hero named Opa-Opa successfully defended the "Fantasy Zone" from invading forces. opa.rar
Opa Stories: Memories Over the Past Nine Decades - Amazon.com : In Australian military contexts, "RAR" stands for