How many soldiers were missing in action in the civil?

During the American Civil War, an estimated 4,000 to 7,000 soldiers were officially recorded as missing in action at various points throughout the conflict. However, the total number of missing could be much higher, as many soldiers were unaccounted for due to the chaotic nature of battles and the lack of comprehensive record-keeping. Additionally, some of these missing may have been killed, captured, or deserted. The exact figures remain difficult to determine due to the conditions of the war.