Burden World

Burden Worlds are a honor system derived from an ancient battlefield code of conduct on that prohibit the taking of battlefield souvenirs and memorabilia from fallen foes who died fighting in combat. The honor system became particularly noteworthy during the height of the , as human observers noted the strange level of respect awarded to certain humans by Sangheili warriors. 
Throughout the war, and notably after its end, it became known that many within the former would retrieve items from human corpses and keep them as memorabilia. This would later cause a great deal of animosity and tension among interspecies black markets, where these items would often be found among enterprising Kig-Yar and Unggoy merchants. The most infamous incident regarding this occurred on , in which the 2555 New Tyne interspecies riots were sparked after a traveling Kig-Yar merchant attempted to sell a framed tattered dress typically wore by human girls no older than seven. 
While there are a list of exceptions, the Sangheili on the other hand do not take items from humans they have slain. This honor system has become deeply ingrained into the wider mainstream Sangheili culture, and despite the heretical attitude taken on towards humans throughout much of the war, select humans who displayed respectable and sometimes even stunning combat feats were granted an honorable death, and even more rarely, a burial accustomed to Sangheili tradition where permitted and away from prying eyes of the fanatical. These incidents are rare and are usually the result of one-on-one combat or those in a "last man standing" scenario. 
The code of conduct states that enemies who display remarkable combat prowess but still fall in battle are to be granted a place of rest where or near where they fell. No items found on their body are to ever be taken, even highly valuable artifacts or technology are not retrieved. After the enemy has taken their last breath, none are permitted to defile or damage the body further and is to be left exactly as is. For those exceptionally worthy of an honor, some humans were given traditional warrior burials and buried by the one Sangheili who killed them, where such a burial rite would require a dozen or more to commemorate. The very ground they fell on would become considered sacred and the planet would become their "Burden World". In the Post-War it was discovered that some locations with burials and bodies were strangely untouched by Covenant glassing beams, sometimes recorded in kilometers. 
However for some Sangheili, their religious fervor would prevent them from committing such an act. The most notable example, are the , who refused to permit any human they killed, no matter how well they fought the right of a "Burden World".
While such acts were rare to witness during the war, it is believed that many instances of respect and care being given to fallen humans by the Sangheili have occurred but were never recorded, observed, or kept in secrecy. 
==Known Humans with Burden World status==
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*Spartan Theodore Sorel