Absolutely. I would suggest that the Canadian military attended a conference in Seattle, Washington, several months ago with the specific intention of looking at the viability of using this. I did have the benefit of speaking with an individual who attended, and she also stated very clearly that she could see wonderful opportunities for the military on that very issue.
Imagine, if you will, an airship being in the air for 30 days at a time without having to refuel or anything. Imagine the area you could cover, and imagine being able to respond to disasters, environmental or otherwise, that could happen in the north. The possibilities are endless.