Phalanstere

Phalanx (military) and monestary (religious autarky).

This was a utopian community model proposed by Fourier.

https://en.wikipedia.org/wiki/Phalanst%C3%A8re

Fourierist movement in general, was ultimately undermined by its unachievable utopian basis — a general creed which as one scholar observed "promised too much and required too little of its adherents."