In the late 1990s/early 2000s I read a story in a sci-fi anthology about a soldier who participates in a drop-assault battle on the Moon. IIRC, the assault force deploys via dropship in the Sea of Tranquility and is assaulting the heights where the enemy is.
One side is described as "rebels" but I cannot recall which. All the infantry wear powered armor and the main character's suit is incapacitated early in the fight, leaving him without his IFF beacon and the ability to communicate. His suit's damage protects him from being targeted by incoming missiles as there's nothing for them to home in on.
He watches in horror as the battle unfolds in front of him until the battle ends, his air runs out, and he dies. Afterwards his suit of powered armor, the only intact and upright suit on the field, is used as a war memorial for the battle.
The quote that sticks out at me is the last line (?) of the story, where the author says they would have placed an eternal flame at the site of the memorial but, "nothing burns on the Moon."
I can't remember anything else about the anthology it was in except that the anthology was fairly recent at the time of purchase.