We don't imagine whole families, or picnics, or wedding parties, for example, as being found on a battlefield — or grocery stores or churches. We don't picture schools or playgrounds or grandparents in the middle of an active battlefield. We visualize something similar to Gettysburg or World War I France: a field with a battle on it. Maybe it's in the jungle or the mountains or the desert of some distant land we're "defending," but it's some sort of a field with a battle on it. What else could a battlefield be?