How the US-Israeli war against Iran exploded into a regional conflict, as Tehran retaliated with strikes across the Middle East

• US-Israel war on Iran – live updates

A US-Israeli war against Iran that began on Saturday with bombing and missile attacks that killed Iran’s supreme leader, Ali Khamenei, has exploded into a regional conflict, with Tehran retaliating by launching strikes across the Middle East.

On Tuesday, Israel’s military launched a ground invasion of Lebanon, where it has been carrying out intense strikes after Iran’s ally, Hezbollah, fired rockets across the frontier.

Missiles and bombs landed across Iran, hitting political and security targets in Tehran, including supreme leader’s residence

• US-Israeli attack on Iran – live updates

• US and Israel strikes on Iran – what we know so far

The US-Israeli war against Iran entered its second day on Sunday, as news of the assassination of the country’s supreme leader, Ali Khamenei, shook the Islamic Republic and the wider region.

Donald Trump announced Khamenei’s death while Israel claimed to have killed at least 40 senior Iranian commanders in the first day of attacks. Both countries continued to pound Iran, conducting hundreds of airstrikes across the country overnight and on Sunday.

Despite the apparent loss of a significant portion of its senior military and political leadership, Iran did not slow its retaliation on Sunday, bombing targets in the Gulf and unleashing waves of ballistic missiles towards Israel.

Analysis shows that the world is moving closer to China, as Trump’s isolationism rears its head at the United Nations

Donald Trump’s return to the White House has accelerated a profound shift in the global order, according to new analysis.

A report from Focaldata, which analyses UN voting records, reveals how Washington’s “America First” agenda has started to redraw the geopolitical map in favour of China.

Warning: this video contains footage that may be distressing to some viewers.

In October 2025, 122 people were killed in what would become Rio’s deadliest police operation. ‘Operation Containment’ was designed to arrest members of one of Brazil's most powerful organised crime groups, the Red Command.

Three months after the police raid many questions still remain, but the Guardian's investigation found that at least one person killed was not a gang member. Police chiefs and conservative politicians have hailed it as a historic blow to organised crime but activists, security experts, the families of the dead, and even Brazil’s president, Luiz Inácio Lula da Silva, have called a disastrous and futile massacre.

A team of journalists across the Guardian has pieced together police body-camera footage, satellite imagery and pictures and video posted to social media to get the clearest picture to date of what happened that day.

• Rio’s bloodiest day: the untold story of Brazil’s most deadly police raid

In interviews with community leaders, lawyers, security specialists and bereaved relatives, the Guardian pieces together how an operation targeting a criminal gang left 122 people dead last October

• Warning: contains graphic images

• Visual investigation: how Rio’s deadliest police raid unfolded

• The Long Wave newsletter: ‘It doesn’t shock that it’s Black people getting killed’

Juliana Conceição startled awake as the first shots of an infamous day were fired in the Complexo da Penha, the labyrinthine Rio favela where she was born and raised.

It was 4.30am on 28 October. Thousands of police had surrounded the community’s barricaded entrances and were preparing to swarm up its streets on foot and in black armoured personnel carriers with firing ports and bullet-cracked ballistic windows.

Key maps show the growing strategic importance of Greenland as Arctic ice melts under global heating

Lying between the US and Russia, Greenland has become a critical frontline as the Arctic opens up because of global heating.

Its importance has been underscored by Donald Trump openly considering the US taking the island from its Nato partner Denmark, either by buying it, or by force.

Wildfires now destroy twice as much tree cover per year as two decades ago – a crisis fuelled by climate change

The world is losing forests to fire at an unsustainable rate, experts have warned.

Wildfires have always been part of nature’s cycle, but in recent decades their scale, frequency and intensity in carbon-rich forests have surged.

From floods to droughts, erratic weather patterns are affecting food security, with crop yields projected to fall if changes are not made

Experts have warned that the world’s ability to feed itself is under threat from the “chaos” of extreme weather caused by climate change.

Crop yields have increased enormously over the past few decades. But early warning signs have arrived as crop yield rates flatline, prompting warnings of efficiency hitting its limits and the impacts of climate change taking effect.

Nour AbuShammala has returned to her partly destroyed apartment in Gaza City. This is her story of multiple displacements, injury and devastation over the last two years

When 26-year-old Nour AbuShammala stepped back into her family’s apartment in Gaza City in October the rooms were gutted, the walls were damaged by bombing, and there was no water or electricity, but it was still home.

Since the outbreak of war in October 2023 she has been forced to flee six times. This is her story of relentless displacement, survival and loss, told using photography and videos provided by AbuShammala and satellite imagery of a ruined Gaza.

Border conflict has roots in colonial maps and long-standing ‘sibling rivalry’

Thailand and Cambodia have been locked in a border dispute for more than a century, which exploded again in the summer of 2025. Peace efforts have had mixed results and fighting continues.

A historical dispute over lines drawn on colonial maps is often used as a pretext for simmering nationalism. The two countries have had what one historian called a “sibling rivalry” for decades, fanned by competing claims to the region’s rich cultural heritage, including ancient temples in disputed areas.

About 56,000 people control three times as much wealth as half of humanity. Here’s one way to illustrate that

Cruising around on private jets, the ultra-rich are the world’s financial elite – but how many people actually occupy this exclusive wealth club? Could they all fit into a floating mega-yacht, or is the group much bigger, possibly the size of a dazzling mega-rich city?

Thanks to an inequality report out on Wednesday, we now have a snapshot of the size of the topmost layer floating above everyone else – the 0.001%.