View source for Yā'mon system

The '''Yā'mon system''' {{SClang|current=Xi'an|kyexiin=hui sen 9yaa2mon|meaning=|srx-meaning=Yā'mon System}}, formerly known as '''Hadur''' to the UEE, was part of the [[Perry Line]] that was ceded to the [[Xi'an]] as part of the [[Perry Line Pact]].<ref>{{Cite RSI|url=https://robertsspaceindustries.com/comm-link/spectrum-dispatch/16992-Galactic-Guide-Hadur-System-Hui-Sen-Y-mon|text=Galactic Guide: Galactic Guide: Hadur System (Hui sen Yā'mon)}}</ref> The Xi'an have begun terraforming a pair of planets in the system and are willing both to employ [[human]] labor and to purchase human-delivered goods as part of the process. A seemingly endless supply of heavy metals, fertilizers, heavy machinery and clean water is required, and the Xi'an as always pay top dollar for items they need.

The Xi'an and the [[UEE]] continue to patrol the system together, with an elite UEE police unit stationed near the star's outer marker. Both governments claim the effort is an example of the evolving friendship between the two powers and it is not unusual to see Xi'an craft flying on the wing of UEE patrol ships. As a result, the system is on the short list for future UEE/Xi'an "First Laser" military training exercises.<ref>{{Cite RSI|url=comm-link/transmission/13095-System-Unlock-Hadur|text=Unlock: Hadur System}}</ref>

After centuries of cold war and tense diplomacy with the Xi'an empire, there are few places where interspecies relations have thawed more than in the Yā'mon system. This former no man's land has, in recent times, transformed into a symbol of cooperation and new hope for all who desire lasting peace between our species.

Humanity's first view of the system came from Teesa Morrison's flight footage as she traversed the Baker-Yā'mon jump point in 2531. What started as an exuberant accounting of her initial findings of a main sequence class F star, anchoring four planets, turned into sheer panic when she ran into a Xi'an military unit escorting a mining team to the belt. Familiar with the Xi'an from the press coverage of the [[Pallas incident]] the year prior, Morrison and her crew fled immediately. The Xi'an military ships followed closely behind, but did not open fire. Morrison later remarked that she believed the Xi'an were tracking them to try to learn where the Human ship had come from. While her crew debated the risk of giving away the location of a Human jump to potential enemies, in the end they decided to return to Baker to report their encounter as soon as possible.

Within a day of receiving the report, a Naval fleet moved into position to guard the jump point, but it was another fifteen days before the first Xi'an scout emerged into Human space. It is likely that war would have broken out then and there if not for the presence of numerous members of the press who had come to cover the situation after Morrison's footage leaked to the news orgs. With the entire UPE watching, the Navy favored caution, and the Xi'an ship was allowed to leave.

Over the next several years, there were several cautious expeditions into the system from Baker. While there were still occasional run-ins with the Xi'an, it was clear that they had no permanent settlements in the system and it was surmised that they had only recently discovered it themselves. Due to the seemingly plentiful bounty of unclaimed resources, a few daring individuals and corporations rushed to begin mining the belt, but the prospect of civilians flying freely alongside [[Alien vehicles|alien ships]] was deemed a disaster waiting to happen.

In 2542, UPE High Naval Commander Jianna Perry proposed that all Xi'an-connected systems be placed under Navy control to provide a buffer to protect the rest of the UPE if and when their alien neighbors decided to attack. After much deliberation, the Tribunal approved the plan and the Perry Line was born. The system Morrison had discovered was renamed Hadur to bring it in line with the military's gods of war designations for border systems (following the pattern started with Horus's name). Corporations who had begun investing in the system were incensed and a drawn-out legal battle for reparations would plague the UPE until Ivar Messer took power and dismissed the suit.

For the century and a half that followed, all traffic in Hadur comprised a melange of military patrols, spy satellites, scan drones and mine layers as both sides sought to defend their respective empires along the Perry Line. Even though tensions continued to grow over the years as the Messers used xenophobic-fueled fear as a means of control, war never came. Finally in 2789, [[Senator Akari]] was able to strike a peace treaty with the ruler of the Xi'an, [[Emperor Kr.ē]].