China produces the entire world’s supply of samarium, a rare earth metal that the United States and its allies need to rebuild inventories of fighter jets, missiles and other hardware.

China produces the entire world’s supply of samarium, a rare earth metal that the United States and its allies need to rebuild inventories of fighter jets, missiles and other…

The auto industry has been hit particularly hard by China's rare earth export restrictions, but analysts warn Western defense giants are also vulnerable.