Кавалерийский бой Холст масло часть 1 - Russian and soviet artists Русские и советские художники

The picture has something of this: people, group, cavalry, many, seated, skirmish, war, man, vehicle, weapon, mammal, dust, lithograph, battlefield, military, transportation system.
Perhaps it’s a painting of a group of men on horses in the middle of a field with a bunch.