Read this paragraph from The Dark Game.

Another thing that changed very little in the years between the wars was the means of obtaining military intelligence. Although the use of photography and the telegraph brought some technological advances, the craft of spying on the enemy's army still relied on fieldwork. For the most part, intelligence was gathered in simple ways. Prisoners of war and deserters were interrogated. The Union army was always interested in hearing what runaway slaves had to report. And, of course, both armies relied on cavalry scouts, signal intercepts, visual observation, and captured correspondence.

What is the best summary of this paragraph?

During the Civil War, intelligence was gathered in the same ways it had been gathered in previous wars.
Photography and the telegraph were some of the technological advances that were used in Civil War espionage.
Most espionage during the Civil War was fieldwork that included observation, scouting, and interrogation of prisoners.
Enslaved persons that ran away, as well as prisoners from the Union Army, were good sources of information during the Civil War.

Paul Janeczko's "The Dark Game" delves into the spy world of the United States and how it played a huge part in military actions in the past. This book provides true stories or narrations about how military and national administrations used various sources to obtain information, including the use of spies and cyber espionage, surveillance satellites, etc.

In the given excerpt, the author's main purpose or aim is to inform the readers of how information used to be gathered by the government in the past. The use of military intelligence, before and during the Civil War, remains the same or only changed a bit. Despite the new technological advancement with photography and telegraph, obtaining information was still largely done using the same means- "fieldwork".

Thus, the best summary for the given paragraph will be that information/ intelligence was gathered using the same methods that were used in the previous years.

To learn more about "The Dark Game" click here:

https://brainly.com/question/26996321

#SPJ1