President Trump. Photo: Chip Somodevilla/Getty Images

President Trump told reporters Thursday that the USS Boxer, operating in the Strait of Hormuz, "destroyed" an Iranian drone that he said approached within 1,000 yards and ignored calls to stand down.

Why it matters: When Iran downed a U.S. drone near the Strait of Hormuz last month, it very nearly led to military conflict. After calling off an airstrike, Trump later tweeted that any "attack by Iran on anything American will be met with great and overwhelming force," adding on Thursday that other nations should join the U.S. in condemning Iran's "attempts to disrupt freedom of navigation and global commerce."

Statement from the Pentagon:

"At approximately 10 a.m. local time, the amphibious ship USS Boxer was in international waters conducting a planned inbound transit of the Strait of Hormuz. A fixed wing unmanned aerial system (UAS) approached Boxer and closed within a threatening range. The ship took defensive action against the UAS to ensure the safety of the ship and its crew."

Update: U.S. defense officials told reporters that the Iranian drone was brought down by "electronic warfare jamming."

Go deeper: Strait of Hormuz re-enters focus for U.S.-Iran tensions

Editor’s note: This story previously said the U.S. had "shot down" the drone. It has now been updated to reflect the new information provided by defense officials.

Go deeper

45 mins ago - Health

More Republicans say they're wearing masks

Data: Axios/Ipsos poll; Chart: Andrew Witherspoon/Axios

Nearly two-thirds of Americans — and a noticeably increasing number of Republicans — say they’re wearing a face mask whenever they leave the house, according to the latest installment of the Axios-Ipsos Coronavirus Index.

Why it matters: A weakening partisan divide over masks, and a broad-based increase in the number of people wearing them, would be a welcome development as most of the country tries to beat back a rapidly growing outbreak.

Buildings are getting tested for coronavirus, too

Illustration: Eniola Odetunde/Axios

Testing buildings — not just people — could be an important way to stop the spread of the coronavirus.

Why it matters: People won't feel safe returning to schools, offices, bars and restaurants unless they can be assured they won't be infected by coronavirus particles lingering in the air — or being pumped through the buildings' air ducts. One day, even office furniture lined with plants could be used to clean air in cubicles.

The summer of Mars

Illustration: Aïda Amer/Axios

Three missions from three different nations are heading to Mars in the next month — including one from the United Arab Emirates, a newer player in planetary exploration that is expected to launch its first spacecraft to the Red Planet this evening.

Why it matters: More nations are now going to space as the costs of launch and development are driven down. Mars is a step farther that is reserved for those with the most ability and resources — missions to the planet are a mark of scientific and technical prowess on the global stage.