Final answer:
Campbell may have visited American POW camps to oversee conditions, ensure Geneva Convention standards were met, or to aid in the repatriation process. These camps housed about 425,000 prisoners from 'Rommel's Army' and operated as minimum security facilities where POWs could engage in voluntary work.
Step-by-step explanation:
The question refers to a visit to American POW (Prisoner of War) camps which could be linked to a historical figure like Campbell who may have visited to inspect, offer aid, or engage with the POWs for various reasons.
During World War II, the United States housed approximately 425,000 prisoners, primarily in the South, but also in other areas including Michigan. Most of these POWs came from 'Rommel's Army' after being captured in North Africa. American POW camps were generally minimum security and operated under the rules established by the Geneva Convention.
This meant providing prisoners with basic needs such as food, clothing, and shelter. Moreover, POWs could not be forced into labor but were able to voluntarily engage in work, such as farming and forestry.
It is reported that the prisoners in these camps often formed relationships with local civilians and some expressed the desire to remain in the US after the war. However, the Geneva Convention dictated that all foreign POWs were to be repatriated to their home countries after the conflict.
Therefore, if Campbell visited American POWs, it could have been to oversee the conditions of the camps, ensure the treatment of prisoners met Geneva Convention standards, or to prepare for the eventual repatriation of those POWs post-war.