Explainer: U.S.-China trade war - the levers they can pull

Beijing has said it would retaliate after President Donald Trump blacklisted Chinese telecom giant Huawei and the United States extended tariffs to cover almost all Chinese imports.

Chinese state media has warned that Beijing could use rare earths for its next strike in the trade war. The United States relies on China for supplies of the rare earths to make a host of high-tech products, from satellites to electric car batteries.

Here are some other possible pressure points for each side.