The Dominion Alliance is an alliance of the Dominion Empire, Cardassian Union, and Breen Confederacy. It was first formed in 2373 and ended in late 2375 with the signing of the Treaty of Bajor. During the Dominion War, the Dominion Alliance was winning many early battles during the first 4 months of the war. After the Federation Alliance recaptured Deep Space Nine, the Dominion Alliance fought many battles, most of which were stalemates. After the Romulan Star Empire joined the Federation Alliance, the Dominion Alliance lost a series of major battles against the Federation Alliance. In 2375, the Breen joined the Dominion Alliance, the Federation Alliance lost the Chin'toka Retreat, they began winning some more battles. After the Federation and Romulan Star Empire made their ships immune to