The trumpet calls

A bearded warrior in an ornate helmet stares forward with a grim expression, then the scene cuts to a vast army marching across a dusty plain under a dark, stormy sky, followed by a close-up of a warrior on a war elephant, then a warrior on a horse, then a war elephant carrying soldiers, and finally a close-up of a warrior with long hair and a helmet, all set against a backdrop of a massive, chaotic battlefield.