Secretary of State Marco Rubio said Wednesday that an expected minerals deal would give the United States a "vested interest" in Ukraine's security, although he stopped short again of promising formal guarantees.
"I wouldn't couch it as a security guarantee, but certainly, if the United States has a vested economic interest that's generating revenue for our people as well as for the people of Ukraine, we'd have a vested interest in protecting it," Rubio told reporters on a refuelling stop in Ireland.
### Rubio says not going to discuss how to 'take over Canada' at G7
The Secretary of State is on his way to Canada for a G7 meeting.
He said he would not raise Canada's sovereignty, following taunts by President Donald Trump.
"We're going to be focused in the G7 and all of those things," he said, mentioning the war in Ukraine. "That's what the meeting is about. This isn't a meeting about how we're going to take over Canada."
### US hardens visitor registration rules for Canadians
The United States will require Canadians visiting for more than 30 days to register with authorities and have their fingerprints taken, the federal register showed Wednesday, as trade tensions soar between the North American neighbours.
The new requirement, effective from April 11, would toughen enforcement of an existing law from which US media said Canadian nationals had typically been exempt in practice.