Os, Pieter Gerardus van – Kozakken op een landweg bij Bergen in Noord-Holland, 1813, 1813-1815 Rijksmuseum: part 3

The picture has something of this: people, cavalry, mammal, camel, seated, group, transportation system, herder, desert, man, weapon, dust, child, war, road, woman.
Perhaps it’s a painting of a group of men riding on the backs of horses in front.