The poll, conducted for Bloomberg by Nanos Research Group, found 55% of Canadians believe the U.S. currently poses the greatest risk to Canada’s national security. Only 15% selected China, while 14% named Russia and 2% chose Iran.

Iran has been joined by Russia and China in deploying naval vessels for a joint live-fire exercise in the Strait

Nuclear ambitions in China, Russia, North Korea and Iran – all states hostile to the West, with the first three located in relative proximity – may mean that the US seeks to divert resources to counter aggression,

Russia says it has deployed naval vessels, alongside China and Iran, for joint exercises in the Strait of Hormuz. The Strait of Hormuz is an important waterway located between Iran to the north and Oman and the United Arab Emirates (UAE) to the south.

US President Donald Trump has publicly declared that the world will know within 10 days whether Washington reaches a deal with Tehran or “takes things further".