Britain may not be prepared to grapple with the 'extraordinarily dangerous world', according to the UK's top military chief.
Admiral Sir Tony Radakin warned that the ongoing wars in Gaza and Ukraine have the potential to destabilise 'an already febrile and agitated world'.
Speaking at the annual Royal United Services Institute in London he also pointed to rising tensions in North Korea and the western Balkans before noting that 'hideous violence' is not the only threat.
He also spoke of 'ideological struggles and creaking pains of tense democracies' operating in the background, according to Sky News.
The head of the armed forces added: 'We're spending more on defence. We're transforming the armed forces.
Admiral Sir Tony Radakin warned that the ongoing wars in Gaza and Ukraine have the potential to destabilise 'an already febrile and agitated world'
A Ukrainian tank crew sit near to the town of Bakmut in the Donetsk region as the Russian invasion of the country continues
Smoke rises over residential buildings at a refugee camp near the West Bank of Jenin
'We're becoming more integrated. But is the machinery and thinking deep within the British state truly calibrated to the scale of what is unfolding? In short: Does it all stack up?'
Throughout the talk, he spoke of Israel's war against Hamas and Russia's ongoing invasion of Ukraine, labelling both wars as a 'turning point in global security'.
The Admiral also said he did not believe Iran wanted a direct war with Israel and its allies, such as the UK and USA, despite backing Hamas, but would be 'comfortable with how events unfolded'.
The military chief's words come as the United Nations (UN) overwhelmingly backed a non-binding resolution for a ceasefire in Gaza yesterday.
Wintery rain has started to lash the territory, where the UN estimates 1.9 million of Gaza's 2.4 million population have been displaced, living in makeshift tents as supplies of food, drinking water, medicines and fuel run low.
The UN warned the spread of diseases - including meningitis, jaundice and upper respiratory tract infections - had intensified.
Israel voiced outrage at the decision, with its ambassador Gilad Erdan warning that fighting will only end when Hamas terrorists 'put down their weapons'.
'If you want a real ceasefire, here is the right address. Here is the phone number of Hamas's office in Gaza, you can all call,' he told delegates before reading out the number of Yahya Sinwar, a terror leader who has been dubbed 'Gaza's Bin Laden'.
The UK abstained from the motion while Israel and the US blocked it.