4.10 The Dominion War (2373–2375)
An illustrated timeline of the Dominion War from August 2373 to November 2375 traces Cardassia's entry into the Dominion, the major battles and turning points involving Federation, Klingon, Romulan, and Breen forces, and the war's abrupt end with a Cardassian uprising and Dominion withdrawal to Cardassia Prime.
August 2373
The Cardassian Union joins the Dominion, and a massive Jem'Hadar military buildup begins on Cardassia Prime. The Vorta negotiate nonaggression pacts with the Romulan Star Empire, Tholian Assembly, Miradorn, and Bajor.
December 2373
Starfleet mines the entrance to the Bajoran Wormhole to prevent Dominion reinforcements, and Federation and Klingon forces launch an assault against the Dominion shipyards on Torros III. In response, Cardassian forces capture Deep Space 9.
March 2374
Jem'Hadar and Cardassian forces continue to inflict heavy casualties on the Federation and Klingon fleets. Of the 112 starships in the Federation Seventh Fleet, 98 are destroyed in the Battle of Tyra.
October 2374
Dominion forces invade Betazed. After uncovering evidence that the Dominion intends to invade Romulan space, the Romulan Star Empire joins the alliance against the Dominion. Romulan forces drive the Jem'Hadar from Benzar.
December 2374
Dominion forces occupy the Kalandra Sector. In one of the war's major turning points, Federation, Klingon, and Romulan forces destroy the Cardassian orbital weapons platform at Chin'toka, landing ground troops on Cardassian territory.
April 2375
The Seventh Fleet launches a new offensive on the Kalandra Sector after determining that Dominion forces are vulnerable there. Starfleet and Jem'Hadar troops battle for control of subspace communications relay AR-558.
October 2375
The Breen Confederacy allies itself with the Dominion, and Breen weaponry proves devastating to allied defenses. Breen forces launch an attack on Earth, causing serious damage to the city of San Francisco and Starfleet Headquarters.
November 2375
A Cardassian popular and military uprising prompts Dominion forces to withdraw to Cardassia Prime, where 800 million civilians are slaughtered. The allied fleets launch their final assault on Cardassia Prime, bringing the war to an abrupt end.