Ex-US adviser criticises Trump's North Korea policy, says risk is imminent

"The idea that we are somehow exerting maximum pressure on North Korea is just unfortunately not true," he said

Former US national security adviser John Bolton on Monday sharply criticised President Donald Trump's North Korea policy, warning that the Asian country posed an "imminent" threat.

"The risk to US forces & our allies is imminent & more effective policy is required before NK has the technology to threaten the American homeland," tweeted Bolton, who was dismissed in September amid growing disagreements with Trump, particularly regarding his North Korea policy.

The erstwhile advisor, a longtime hawk on North Korea, was openly skeptical of the 2018 summit between Trump and North Korean leader Kim Jong Un, and encouraged the US president to be