Lets say that the Dominion has pulled from the Alhpa Quad as best as it could, odviousl leaving the Breen behind and say a few small settlements. Now lets say the Breen have been stocking pileing a vast array of Dominion Technology and put it toward their own use. Without the Federations knowledge and the aid of the Frengi the Breen have made themselves an even more deadly force to be reconed with.
"Never turn your back on a Breen" Old Romulan Saying
The might of the Breen, the Contacts of the Frengi, the support of small units of Jem'Hadar... Can anyone say WAR!