![US President Donald Trump says a major conflict may break out with North Korea.](/web/20170429063552im_/http://www.smh.com.au/content/dam/images/g/v/u/8/3/d/image.related.wideLandscape.460x259.gvumkj.png/1493439150765.jpg)
Trump warns of 'major, major' conflict with North Korea
Prime Minister Malcolm Turnbull says he sees no immediate need for Australia to develop a missile defence shield against threats such as North Korea, as US President Donald Trump warned of the possibility of "major, major" conflict with the rogue nation.