: 2RAR was originally established as the 66th Battalion in 1945 for occupation duties in Japan before being renamed in 1948.
The identifier in connection with 2RAR (2nd Battalion, Royal Australian Regiment) appears to refer to the service number of a specific soldier. 21883 rar
In historical records and community discussions, this service number is linked to a veteran of the Royal Australian Regiment (RAR) , which was formed in late 1948 [16]. Background on the 2nd Battalion, RAR (2RAR) : 2RAR was originally established as the 66th