The Kremlin has accused President Trump of attempting to erode Russia and China’s nuclear potential with his plan for an Iron Dome missile defence system. The programme was “yet another confirmation of the US focus on turning space into a scene of armed confrontation and deployment of weapons”, Maria Zakharova, the chief spokeswoman of the Russian foreign ministry, said. Trump issued an executive order on Monday mandating a process to develop an “Iron Dome for America”, a reference to the aerial defence shield used by Israel. Zakharova said that this implied “a sharp intensification of the US national missile defence...