This administration in particular, but going back to the previous one as well, probably recognized the importance of critical minerals for defence sooner than anybody else in the western world. This administration in particular has been laser-focused on finding critical minerals that it deems necessary for U.S. national security, and the focus seems particularly to be repeatedly on rare earths.
You've seen the interest in Ukraine, the interest in Greenland, partnerships with Australia, interest in Canadian minerals and interest in minerals from places further afield, particularly in South America and Africa, although I don't know much about the critical minerals landscape in Africa. It's a strategy to find alternative sources of critical minerals that don't go through China, basically, and wherever those are, the United States is interested in finding them.