Sisko: Sir, the thought of filling the streets with armed troops is as disturbing to me as it is to you. But not as disturbing as the thought of a Jem'Hadar army landing on Earth without opposition. The Jem'Hadar are the most brutal and efficient soldiers I've ever encountered. They don't care about conventions of war, or protecting civilians. They won't limit themselves to military targets. They'll be waging the kind of war that Earth hasn't seen since the founding of the Federation.