Q/A 5

"Whose death is still greatly mourned or remembered in your world?"
The death of Xa'a, was one such event, although later revived, during mid-Second Xanxon-Imperium War, Markovich's forces were pinned down by an attacking German 4th Regiment, infamous  for being able to challenge some of the greatest Imperium armies, accompanied by the 11th Xanxon Legion, an extremely powerful force, certainly to be reckoned with. The 11th Legion fought in some of the worst battles in the whole of human history, the Battle of Shanghai, the 2nd Battle of Gettysburg, the Battle for Warsaw, and more. 
Xa'a, seeing this, decided that it was unfair of the Xanxons to beat Markovich and Azur's exhausted forces with these units, prone to disloyalty, Xa'a decided to turn his back on the Xanxons, and attacked the Xanxons full force, sending his full 700,000 troops against them, in one of the fiercest battles ever fought, Xa'a barely managed to win. Xa'a, exhausted and mortally wounded, then decided to challenge Markovich and Azur to a fair fight, a duel, but before a legitimate response besides an acknowledgment of the situation, Xa'a collapsed of his wounds, and died about 8 minutes after.
Historians concluded that, without this act of grace, seemingly from God himself, Markovich, Azur, and all of their forces, the Nine/9, and Azur's commandos such as Sheffield Williams, would have died, and it is entirely likely that the whole war would have ended in Xanxon victory.
The media published article after article on the subject, congratulating Xa'a and his soldiers who helped the Imperium cause. The public mourned his loss as though he was one of their own, even staunch anti-Xanxons were pressured to join in the public grieving, on the battlefield, soldiers and commanders organized truces with the Xanxons, it was, after all, in Xa'as words, "Only fair of me". The Xanxons had just lost some of their best units, and the Imperium had to deal with the ramifications of the event. 
Xa'a would later be revived and joined the Imperium.