Good morning, it's Therese Kehler. 

This weekend, the U.S. launched a significant surprise military operation, targeting a trio of nuclear facilities in Iran. Though U.S. President Donald Trump has said the sites were "completely and fully obliterated," other officials say it's still too soon to say the exact impact on Iran's nuclear program.

Meanwhile, Iran and Israel were exchanging strikes again today.

In wake of U.S. strikes, Iran faces a pivotal choice: Dash to build a weapon or negotiate

A satellite view shows an overview of the Fordow underground nuclear complex after the U.S. struck the facility near Qom, Iran, on Sunday. Some observers say Iran may have already moved enriched uranium from the site. (Handout/Maxar Technologies/Reuters)

The United States inserted itself into the war between Israel and Iran this weekend, striking three nuclear facilities in Iran in what is being called the largest B-2 operational strike in U.S. history.

But as senior CBC correspondent Chris Brown reports, it might not be enough to destroy Iran's nuclear program.

"The fundamental reality remains that military action alone can only roll back the program by degrees, not eliminate it fully," said Darya Dolzikova, with the Royal United Services Institute, a London-based military think-tank.

War continues: Today, Iran fired a salvo of missiles and drones at Israel, while also warning the United States that its military has been given a "free hand" to attack U.S. targets. Israel, meanwhile, said it was striking Iranian government targets in Tehran, including Evin Prison. Iranian state TV reported the Fordow underground enrichment site was attacked again. Follow this developing story throughout the day here.

Mixed messages from Washington: Early Sunday, top U.S. officials suggested Iran's lack of military capabilities would ultimately force it back to the bargaining table, with Defence Secretary Pete Hegseth stating: "This mission was not and has not been about regime change." In an afternoon social media post, U.S. President Donald Trump indicated otherwise. "It's not politically correct to use the term, 'Regime Change,' but if the current Iranian Regime is unable to MAKE IRAN GREAT AGAIN, why wouldn't there be a Regime change???"

Canada's reaction: Prime Minister Mark Carney, who was briefed while flying to Brussels for the Canada-EU Summit, reiterated Canada's position that Iran can never be allowed to develop a nuclear weapon and urged parties to immediately return to the negotiating table to reach a diplomatic resolution.

Canada opens the door to a deeper European defence and security partnership

Prime Minister Mark Carney, left, met with Ukrainian President Volodymyr Zelenskyy, right, and French President Emmanuel Macron, among other members of the new European defence pact, at the G7 last week. (Darryl Dyck/The Canadian Press)

Canada and Europe will become closer today when Prime Minister Mark Carney signs a strategic defence and security partnership with the European Union. 

What it means: The agreement will open the door for Canadian companies to participate in the $1.25-trillion ReArm Europe program, which is seen as a step toward making Canada less reliant on — and less vulnerable to — the whims of the United States.

Why it matters: It will help reduce Canada's reliance on U.S.-made military equipment and enhance long-term sovereignty in procurement decisions through collective bargaining and joint manufacturing. The U.K.'s agreement also establishes a series of institutional links for crisis management, maritime security and cybersecurity.

The bigger picture: Amid growing uncertainty around U.S. foreign policy, this agreement signals Canada's intent to diversify its alliances, reinforcing multilateral co-operation with European allies outside of NATO.

Wronged by an airline? Backlog of 87,000 complaints at regulator predicted to balloon

A passenger checks the departure screen at Montreal's Trudeau Airport, showing three cancelled flights. The backlog of air travel complaints with Canada's regulator has swelled to over 87,000, meaning it can take two years to get a ruling. (Paul Chiasson/The Canadian Press)

Alex Laferrière was so frustrated with Air Canada following a flight delay that he filed a complaint with the airline regulator. Then he learned there were at least 87,000 complaints ahead of him — and, according to new data obtained through Access to Information, the Canadian Transportation Agency's backlog is expected to keep getting bigger.

The best-case prediction sees the backlog decrease to 63,763 by 2028, if the number of complaints filed drastically drops and the CTA continues to close them at its most recent rate. The worst-case scenario, which may be more applicable given rising complaints, suggests that by 2028, the backlog could reach 126,000 — an increase of 45 per cent. 

Why it matters: Air passenger advocate Gábor Lukács says the system is unnecessarily complicated and requires significant resources to deal with each complaint. The other issue is the lack of penalties when airlines refuse to compensate passengers who are owed it but are forced to file with the CTA.

Is anything happening? In 2023, the federal government called on the CTA to implement a cost-recovery mechanism, forcing airlines to contribute to the cost of the complaint resolution process, but the plan has yet to be implemented.

In case you missed it

• Canadian MVP Shai Gilgeous-Alexander led the Thunder to the team's 1st NBA title in Oklahoma City and its 2nd in franchise history.
   
• In Vienna, more than half of its residents live in some form of subsidized housing. Could the Austrian city teach Canada something about dealing with a growing housing crisis? 
   
• John McCallum, a former federal Liberal cabinet minister, has died, his family said Sunday. He was 75.
   
• In the past two years, at least five rideshare drivers in Ontario have been arrested or convicted in connection with a sexual assault. However, the extent of the problem is unclear since companies like Uber and Lyft have not released data on alleged sexual assaults in Canada.

And, finally, some good feelings from Saturday ...

Sunrise ceremonies, celebrations across Canada mark National Indigenous Peoples Day

Allison Bernard Memorial High School drummers Adora Johnson, left, and Mia Gould took part in a Mi'kmaw sunrise ceremony on Saturday near Louisbourg, N.S., to start National Indigenous Peoples Day. (Tom Ayers/CBC)

From sunrise ceremonies on the Atlantic, to a fish fry in the North, National Indigenous Peoples Day was celebrated at hundreds of events throughout Canada on Saturday. 

The summer solstice is significant for many Indigenous people; since 1996, June 21 has been a day to recognize traditions, cultures, and contributions of First Nations, Inuit and Métis.
Here are a few highlights from CBC's coverage:

The First Light celebration in St. John's saw its largest-ever turnout for its sunrise celebration. "We're very fortunate to be one of the first in Turtle Island to greet the sun. And so, that's a big responsibility for us to do that in a good way," said First Light's Kelly Young.

In Saskatchewan, the Roughriders football club unveiled a new Indigenous variation of the team logo for the 2025 CFL season.

Food, music, clothing and community were all part of celebrations in the North. In Yellowknife, the North Slave Métis Alliance hosted its annual fish fry and stage show, while Whitehorse events included a jigging contest and a bannock bake-off.

Here are even more highlights from other parts of the country.