This is a list of photographs considered the most important in surveys where authoritative sources review the history of the medium not limited by time period, genre, topic, or other specific criteria. These images may be referred to as the most important, most iconic, or most influential—but they are all considered key images in the history of photography.
The oldest surviving camera photograph.
These surveys of the history of photography determine which images are included in the list.
Looking at the photos it is clear that it is not the heat of battle. It is likely the soldiers were carrying out an exercise either for Capa or themselves.