U.S. President Donald Trump has signed an executive order to slap a 10-percent tariff on all Chinese imports under the pretext of fentanyl control. China firmly opposes the move, saying it directly violates World Trade Organization rules. In response, Beijing has taken countermeasures to impose tariffs on U.S. goods. What's the nature of the latest tariff disputes? And how could major powers like China and U.S. steer ties toward global economic stability?