China says it will retaliate against the latest and largest round of US tariffs. Washington escalated the trade war on Monday, hitting China with tariffs on an additional $200bn worth of goods. The US government will begin collecting a 10 percent tariff on those goods starting on 24 September, through to the end of the year. Then on 1 January, 2019, the tariffs will jump to 25 percent. Al Jazeera’s Scott Heidler reports from Beijing.