China has spent the last two decades building defences for its nuclear armoury on land and at sea, ensuring that the military can hit back at a nuclear attack and deter others from launching one, according a former Chinese senior colonel.

The Trump administration is preparing to designate Yemen’s Iran-backed Houthi insurgents a terrorist organization before leaving office in January, fueling fears the move will disrupt international aid efforts and upend United Nations-brokered peace efforts between the Shiite movement and the Saudi-backed Yemeni government, according to several diplomatic sources.

President Donald Trump is expected to cut a significant number of U.S. troops in Afghanistan and a smaller number in Iraq by the final days of his presidency, U.S. officials said Monday. The plan would run counter to military commanders’ advice over the past year, while still falling short of …