The Stellar Nation has already gone to Holy War, once. It was a long time ago, a few centuries after its creation.
It took place in the sector that is today known as "The Hub". A local polity was, shall we say, pissed-off that Cradle was being converted to the Doxa, and slowly slipping from its grasp. So they declared war on the Stellar Nation, and persecuted the Believers.
It all escalated when the Enemy tried to violently put down a rebellion in Cradle. The Stellar Nation held a vote, like what has been presented above, and the result was clear. It wasn't -just- war anymore. It was Holy War. The Taint had to be Purged.
So an ultimatum was sent :
"You will cease your persecution of the Believers and Withdraw from Cradle. You have 72 hours."
The Enemy laughed at the ultimatum.
Its Capital Planet was turned to ash - literal ashes from massive atomic and orbital bombardment - in the following week. The other habitable worlds of the Hub, now independent under protectorate of the Stellar Nation, are the remains of this Empire which surrendered.
This conflict is also the reason why, even if the Community may not be appreciated equally by all (
