Donald Trump might talk tough when it comes to North Korea, but the reality is the US President has few options when it comes to stopping the rogue state.

That is the damning assessment by experts and analysts who warn there is actually no viable military option available to the US President.

In fact, they say Mr Trump’s rhetoric is inflaming the crisis even further while stressing a military option will only result in catastrophic global consequences.

Ashley Townshend, Acting Director for Foreign Policy, Defence and Strategy at the United States Studies Centre at the University of Sydney, said Mr Trump’s rhetoric was far from helpful.

“This sort of fire and fury comments coming from the commander-in-chief are highly destabilising,” he told news.com.au.