Compare Catherine Petkoff's description of the cavalry charge with that of the fugitive Swiss soldier?

Catherine informs Raina that her fiancé Sergius headed a daring cavalry charge, winning a major battle.

The figitive Swiss soldier explains that the Bulgarian cavalry charge earlier that day was an idiotic maneuver that succeeded because of sheer luck: Sergius led a suicidal cavalry charge against a line of bristling machine guns. Fortunately, the Serbians had, through an obscure logistical mistake, procured the wrong kind of cartridges. If not for this lucky coincidence, the Bulgarian army would have been mowed down immediately.