Oh
I read this on Post War Guilds in wiki. It may have changed since maybe.
"Eager to get rid of the last remnants of the war from their system, the Guild entered negotiations with ALG Waste Disposal, brought to fruition by Interspace Commerce. The deal would change the terms of the Rheinland defeat, forbidding Military and Police units - as well as ships belonging to Kruger Minerals - from entering Sigma-13. Other Rheinland corporations would be allowed to pass, but not set up bases - with one exception: the ALG would be allowed to set up one base to help with the cleanup of the wreckage from the Yanagi field. Helgoland Station (as the base was christened) was set up at the edge of the scrap field bordering the trade lane to Naha, and would be the very symbol of the Rheinlanders' defeat for years to come."