Today in History: May 18, Mount St. Helens erupts

Today is Monday, May 18, the 138th day of 2026. There are 227 days left in the year. Today in history: On May 18, 1980, the Mount St. Helens volcano in Washington state erupted, leaving an estimated 57 people dead or missing.

Trump says he's called off Iran strike planned for Tuesday at request of Gulf allies

WASHINGTON (AP) – President Donald Trump said he is holding off on a military strike on Iran planned for Tuesday because “serious negotiations” are underway.

US pauses joint defense effort with Canada that dates to WWII

WASHINGTON (AP) – The United States is pausing its participation on a joint board with Canada for continental defense that dates back to World War II, the Pentagon announced Monday, accusing Canada of failing “to make credible progress on its defense commitments.”

Federal court rejects Elon Musk's claims against OpenAI

OAKLAND, Calif. (AP) – A federal court on Monday dismissed claims filed against OpenAI and its top executives by Elon Musk, who accused them of betraying a shared vision for it to remain a nonprofit dedicated to guiding artificial intelligence’s development for the good of humanity.

Duchy of Cornwall to sell 20% of property portfolio to fund housing, green projects

LONDON (AP) – Prince William’s Duchy of Cornwall plans to sell about 20% of its 1 billion pound ($1.3 billion) property portfolio over the next decade to consolidate its holdings and finance plans to build thousands of homes, expand renewable energy production and pursue wildlife restoration projects.

Pope and co-founder of Anthropic to launch pontiff's AI encyclical on May 25

ROME (AP) – Pope Leo XIV and the co-founder of artificial intelligence company Anthropic will launch the pontiff’s first encyclical on May 25, a document on the care of human dignity in the era of AI, the Vatican said Monday. Anthropic has billed itself as the AI company that puts safety and risk-mitigation at the forefront of its research.

What to know about the political chaos engulfing the UK's Labour Party

LONDON (AP) – British Prime Minister Keir Starmer tried to strengthen his grip on office Monday, saying he was getting on with the job after taking blame for the Labour Party’s disastrous election results that have put his leadership in jeopardy.

Ebola and hantavirus have Africa talking 'health sovereignty' as donor support fades

HARARE, Zimbabwe (AP) – A new and deadly Ebola outbreak in Congo and Uganda is the latest health emergency forcing African governments to break free of dependency on global donors like the United States as international support has been slashed in half over the past five years.

Timeline of recent US-Cuba relations amid heightened tension

WASHINGTON (AP) – The United States began ratcheting up pressure on communist-controlled Cuba after the military action in Venezuela early this year resulted in the capture of President Nicolás Maduro.