Yes. Preferably, we need it not just for ballistic missile defence. There are also the cruise missile concerns. Pollution is a big problem.
It's so expensive to operate and to put things in the Arctic. We may need a combination of space, land, and other assets. Hopefully it doesn't do just one thing. We need it to be multi-purposed. I know the U.S. and Canada are starting to look at the engineering options.