I don't side myself with Peta on anything, really, but I think something is being missed here.
PETA is about animals. Not people. I agree, priorities are a bit screwed up, but that is what the organization is about. Of course they are not going to be making press releases about how war takes a human toll. It's not their focus. So to say they complain about the animals affected by war and not mention the human tolls, makes sense.