Worf: In the past, the Changelings were a powerful enemy of the Federation, united in purpose. But when the Dominion War ended, there was a schism. A terrorist faction broke away, unwilling to accept defeat. I was contacted by a close friend within the Link, a man of honor. He informed me of this rogue group but if Starfleet were to acknowledge their existence…
Raffi: … we would be reigniting the Dominion War.