The US faced widespread condemnation at the UN Security Council for its military action in Venezuela. Key allies and adversaries joined forces to denounce the attack, calling it a dangerous precedent.
European military leaders warn tactics from Russia's war could be replicated in the Indo-Pacific. Australia must prepare for drone warfare and new threats, say experts.
UK PM Keir Starmer joins European allies in a firm statement upholding Greenland's sovereignty after US threats. Read the latest on the Arctic security crisis.
European leaders meet in Paris to discuss Ukraine aid, as the US's Venezuela actions upend geopolitics. Follow the latest on security guarantees and the Trump threat.
Greenland's PM and Denmark's PM Mette Frederiksen firmly rebuff Donald Trump's renewed interest in acquiring the Arctic territory. Frederiksen warns such a US attack would end NATO.
Donald Trump doubles down on plans to annex Greenland for 'national security', sparking a fierce diplomatic row with Denmark and warnings of a NATO collapse. Read the latest.
Danish PM Mette Frederiksen warns NATO would be 'finished' if the US attacks Greenland, as Sir Keir Starmer backs her stance. Read the latest on the escalating diplomatic crisis.
Sir Keir Starmer aligns with Danish PM Mette Frederiksen after Donald Trump's Greenland remarks. The US leader's comments follow the capture of Venezuela's president, raising NATO concerns.
President Trump renews US claim to Greenland, citing defence needs. Denmark's PM firmly rejects annexation, warning of disrespect to a close ally and raising fears of a Venezuela-style operation.
Danish PM Mette Frederiksen condemns US President Trump's threats to annex Greenland, calling them 'senseless'. Nordic leaders unite in support as Trump doubles down on national security claims. Full analysis.
European nations are urgently boosting defence budgets, driven by the Ukraine war and a potential Trump return. Discover the key trends reshaping the continent's security strategy.
As populism and conflict rise, the principle of multilateralism underpinning UN climate talks faces unprecedented threats. Can global cooperation survive to tackle the climate crisis?
Finnish authorities detain cargo vessel suspected of damaging a vital undersea telecoms cable between Helsinki and Tallinn. The incident raises security concerns in the strategically sensitive Baltic Sea.
Residents of Plauru, Romania, live in fear as Russian drones target Ukrainian ports across the Danube. A Guardian report reveals the psychological toll and isolation of NATO's eastern edge.
The US launched airstrikes against Islamic State targets in Nigeria on Christmas Day, with officials warning of further action. Nigerian authorities confirm joint operations and intelligence sharing. Read the latest.
The US carried out precision airstrikes against Islamic State militants in north-west Nigeria on Christmas Day. President Trump confirmed the action, citing the group's targeting of Christians. Read the full report.
Russia's deputy foreign minister says Moscow is ready to legally confirm it has no intention of attacking the EU or NATO. This comes as Ukraine offers concessions on NATO membership for security guarantees. Read the latest diplomatic developments.
A senior Royal Navy commander warns NATO must bolster defences against military and cyber threats from Russia. Discover the alliance's critical vulnerabilities and the urgent call for investment.
The UK government believes a new German law criminalising migrant smuggling facilitation will disrupt gangs storing boats in Germany. Read how this cross-border cooperation aims to secure UK borders.
Metro readers share strong views on phone addiction, AI threats, and European security. From London to Glasgow, see what's sparking debate. Have your say in the comments.
Air Chief Marshal Sir Richard Knighton warns Russia's military is stronger than ever, urging a 'whole of nation' response to rising danger. Read the stark assessment.
A 149,000-tonne Russian shadow fleet tanker, crippled by a Ukrainian drone, drifts into NATO's Black Sea waters near Bulgaria. Crew evacuation stalled by brutal winter storms.
NATO staged its biggest-ever cyber war game in Tallinn, simulating crippling attacks on civilian and military infrastructure. Discover how allies prepared for the digital battlefield.
A new US National Security Strategy outlines a dramatic 'America First' foreign policy shift, warning Europe could be 'unrecognisable' due to migration. Read the key details.
Sweden's navy encounters Russian submarines almost weekly in the Baltic, with fears of increased activity post-Ukraine ceasefire. Read the latest on regional security.
Putin and Trump's envoy fail to agree on Ukraine peace terms. Analysis reveals Europe's crucial but unsustainable role in blocking a deal favouring Russia. Read the full breakdown.
NATO Secretary-General Mark Rutte delivers a firm commitment to European defence, stating the alliance is prepared to take all necessary measures. Read the full statement and analysis.
High-stakes Moscow talks between the US and Russia yield no breakthrough on Ukraine. Putin issues stark war warning to Europe as NATO ministers convene in Brussels.
Vladimir Putin states Russia is prepared for immediate conflict with Europe, rejecting a 28-point peace plan. Experts warn Moldova and Baltic states could be next targets. Read the full analysis.
Donald Trump's special envoy Steve Witkoff meets Vladimir Putin in Moscow for Ukraine peace talks, as a senior NATO officer suggests considering a 'pre-emptive strike' against Russia. Read the latest developments.