About those other tasks, I'll say they're not purely altruistic. If Taiwan were to fall to China, the security picture in east Asia would change overnight. We'd see the U.S. have to pull back and we might see a nuclear-armed Japan as a result. The reverberations would be felt in Canada.
I'd also remind the committee that China has very specific ideas about its role, both in the Antarctic and in the Arctic. We need to think about that. That requires some capability. We don't have to do all of the job, but not doing any of it means we have no say in how the job gets done.