This painting illustrates the capitulation of the British army in Yorktown. Which side actually capitulates?

In the center of the scene, American General Benjamin Lincoln appears mounted on a white horse. He extends his right hand toward the sword carried by the surrendering British officer, General Charles O'Hara, who heads the long line of troops that extends into the background. To the left, French officers appear standing and mounted beneath the white banner of the royal Bourbon family. On the right are American officers beneath the Stars and Stripes