Memory is the eighth1 book in Lois McMaster Bujold’s Miles Vorkosigan series.
Killed by an enemy grenade in a previous book, Miles turned out to be only mostly dead. After an extended recovery (and some complications) he returned to his role as Admiral Naismith of the Dendarii Mercenaries. But there were lingering health effects from his injuries. Simple prudence should have kept Miles off battlefields. It didn’t.
One day Miles wakes from a seizure to discover that he had inadvertently lopped off the legs of the man his team was trying to rescue. Unwilling to admit to error or damaged health, Miles compounds his error by writing a false report on the incident and sending it to his boss, spymaster and ImpSec Chief Simon Illyan.
The consequences are immediate and dire.