Eugène-Louis Boudin, French, 1824-1898 – Beach at Trouville Philadelphia Museum of Art

The picture has something of this: people, military, battle, man, group, army, soldier, skirmish, war, many, weapon, uniform, action, landscape, force, mammal, combat, water, gun.
Perhaps it’s a painting of a group of people standing on a beach with umbrellas in the sand and a horse drawn carriage.