Question

read the excerpt from the dark game true spy stories from invisible ink to cia moles. yet, by the time robert e. lee surrendered to ulysses grant at appomattox, virginia, some four years later, about 620,000 soldiers had died on the battlefields, more than american battle deaths in all other wars from the revolution through the vietnam war. what is the authors primary purpose for including this detail? to inform readers about the differences between three military conflicts to persuade readers of the seriousness of the american civil war to entertain readers with tales from behind the lines of battle to encourage readers to visit battlegrounds in appomattox, virginia

Explanation:

The author mentions the high number of Civil - War deaths compared to other wars to emphasize the seriousness of the American Civil War. It is not about comparing three military conflicts, entertaining with behind - the - lines tales, or encouraging visits to battlefields.

Answer:

to persuade readers of the seriousness of the American Civil War