as far as i know, the wrecks in sigma13 are due to the war of rhineland vs. kusari…
for further reference of 80-year-war:
Rich in vital gas resources, the Sigma-13 system has been contested by a number of groups since its discovery in 60 AS. Conflict reached a fever pitch when the system became one of the more fiercely contested prizes during the 80-Years War between the Gas Mining Guild (GMG) and Rheinland. Using speed and a thorough knowledge of the territory, the GMG managed to push back the Rheinland forces, finally obliterating the bulk of the Rheinland Navy at the Battle of the Yanagi Nebula. Since that time the system has been almost exclusively under GMG control, and the Gas Miner Naha has provided support for the GMG’s extensive mining operations.
At the Battle of the Yanagi Nebula, the forces of the Gas Mining Guild managed to obliterate almost the entire Rheinland Navy in a surprise maneuver. The remnant of that great battle is a vast field of Scrap Metal and radioactive cores that has rendered the area a major navigational hazard. Under an agreement brokered by Interspace Commerce (IC), ALG Waste Disposal has been allowed to build Helgoland Station and begin clean-up of the affected area, shipping Scrap Metal and other waste back to Rheinland for re-smelting.
source: www.battleclinic.com/freelancer
greetz,
Banjo