china is warning the u.s. warships to stay clear of the islands. they are taking its claim to the territory. and china is summoning our and they have more naval maneuvers. reporter: jenna, yes, strong words coming from china one official saying that the u.s. has threaten china sovereigntyty. and the u.s. sees it differently. and pentagon confirming to u.s. fox news that the ship was conducting are you tone operations and exercising its freedom of navigation and went on p trol in the south china sea. and the maneuver is a game changer.