Canadian Armed Forces:

However, since the end of the Cold War, as the North Atlantic Treaty Organization (NATO) has moved much of its defence focus "out of area", the Canadian military has also become more deeply engaged in international security operations in various other parts of the world most notably in Afghanistan since 2002.

Please answer a question about this article. If the question is unanswerable, say "unanswerable". What year did the Canadian Military operation in Afghanistan end?
unanswerable