The US President has issued a direct threat to Iran - tweeting that if Iran wants to fight, it will be the end of the country. <br />However, later he said he would prefer an economic war.<br />Iran's Foreign Minister Javad Zarif has hit back - saying Iran won't be intimidated by - quote – “genocidal taunts”. <br />Tensions between Washington and Tehran have been on the rise, after the United States deployed an aircraft carrier group and B-52 bombers to the Gulf over unspecified Iranian “threats”.<br />Al Jazeera's Charlotte Bellis reports.
