New Delhi, March 4 -- "The fentanyl issue is a flimsy excuse to raise US tariffs on Chinese imports", China hit back at US president Donald Trump on Tuesday. "If war is what the US wants, be it a tariff war, a trade war or any other type of war, we're ready to fight till the end", Beijing vowed.

President Donald Trump's long-threatened tariffs went into effect Tuesday, putting global markets on edge and setting up costly retaliations by the United States' North American allies.

The 10% tariff that Donald Trump placed on Chinese imports in February was doubled to 20%, and Beijing retaliated Tuesday with tariffs of up to 15% on a wide array of US farm exports. It also expanded the number of US companies subject to export controls and othe...