Trump unveils plans for 'Golden Dome' defence systemWatch: Trump announces Golden Dome missile defence shieldThere are also doubts about whether the US will be able to deliver a comprehensive defence system for such a huge land mass. The US has selected a design for the futuristic "Golden Dome" missile defence system, says President Donald Trump, adding that it will be operational by the end of his time in office. The system is partly inspired by Israel's Iron Dome, which the country has used to intercept rockets and missiles since 2011. "Israel's missile defence challenge is a lot easier than one in the United States," Marion Messmer, a senior research fellow at London-based Chatham House, told the New York Times. The many aspects of the system will fall under one centralised command, US defence officials have said.