Final answer:
The oxymoron 'courageous retreat' emphasizes the justified decision of the general to retreat.
Step-by-step explanation:
The oxymoron 'courageous retreat' emphasizes the idea that the general's decision to retreat is justified. An oxymoron is a figure of speech that combines two contradictory terms. In this case, 'courageous' and 'retreat' are opposites. The use of the oxymoron highlights the bravery and strategic thinking behind the general's choice to retreat in order to protect his men from further harm.
Learn more about oxymoron in the passage