The Force are in danger of being cut from the Super Rugby competition after the ARU announced either the Force or Rebels would be dumped ahead of next season.
Both franchises have threatened to take legal action against the ARU in a bid to stave off extinction.
The Force have issued a writ in the Supreme Court notifying the ARU of their intentions to apply for an injunction against any plan to boot them out of the competition.
RugbyWA and the ARU will meet on Thursday, but the Force deny this meeting will make or break their future.
The Force argue that the “alliance” agreement they signed with the ARU last year guaranteed their future until the current broadcast deal ends in 2020.
“There is no basis on which the ARU can purport to remove the Western Force from the Super Rugby competition,” the Force said in a statement.
Former WA Governor Malcolm McCusker is set to represent RugbyWA in its bid to save the Force if the ARU attempt to axe the Perth-based franchise.
The WA public have rallied around the Force, with 14,089 fans turning up for Saturday’s match against the Chiefs.