I'll start, and the vice chief of the defence staff can certainly jump in.
All missions for the Canadian Armed Forces are an extension of foreign policy, and so, of course, we work with Global Affairs Canada to determine where the Canadian Armed Forces can be an extension of foreign policy for Canada. We respond to requests, as happened with the NATO training mission in Iraq. We are a partner in the UN, so we look at UN missions, and we receive requests from the UN as well.
We also look at where we have geographic interests to protect. For example, we participate in Op CARIBBE, the drug interdiction effort in the Caribbean. That is useful for us and protects Canadian interests more broadly. There are number of methods by which we get asked. They're all an extension of foreign policy and government will.