Exactly. Another obvious example were the bombings done by the allies during WW2. Nagasaki, Hiroshima, Dresden (less known because they didn't use nukes, but with no less destruction: [1][2]) would have been classified as war crimes for certain had the allies lost.

[1] http://www.currentconcerns.ch/archive/2003/02/20030230.php [2] http://timewitnesses.org/english/~lothar.html