Starfleet Jedi: Star Trek: Fleets in Deep Space Nine

In Deep Space Nine, we see the largest fleets assembled in Star Trek. Large deployments of hundreds to several thousand ships were common in the Dominion War; typical urgent missions involved dozens of warships.

It is possible for small resourceful factions within any major power to construct dozens of ships in secret within a couple years' time.

The Klingons' battlefleet numbered several thousand warships, declining significantly in the latter phases of the Dominion War. By late in the final year of the war, the Klingon Empire still had at least 1500 warships conducting offensive operations, while the Alpha Quadrant Dominion (Breen, Jem'Hadar, and Cardassians) had 30,000 warships between them.

The Cardassians themselves were facing defeat from one third of the Klingon fleet; given that the Galor class making up the backbone of the Cardassian fleet is not too much weaker than the typical Klingon warship, it is likely that the Cardassian fleet after the Federation war was 1/3-1/2 the size of the Klingon fleet.

The Klingon-Romulan-Federation alliance operated many thousands of warships, deployed in joint fleets numbering 100-400 ships. The number of vessels per fleet appears to have increased over time thanks to increased Romulan support of the war, with thousands of ships apparently lost on both sides. The Allies may have had as many as 15,000 warships overall.

In "Defiant," we see 26 Cardassian warships searching for the Defiant; they plus 15 outposts report no sign of the Defiant within a half hour's time. Once it is found, ten warships box it in behind from 6 light years away, while five Obsidian Order ships lie ahead of it.

Twenty ships attack the Founder's homeworld in "The Die is Cast," intending to wipe it out. They are ambushed by a somewhat larger force.

In another high-pressure raid, the Klingons attack Trelka V with five birds of prey in "Once More Unto the Breach."

"The Way of the Warrior" - the first wave of the Klingon assault, striking from DS9, has "well over one hundred ships" in it. At least thirty warships will be stationed around Ty'Gykor at any given time in "Apocalypse Rising."

"In Purgatory's Shadow" a fleet of "fifty or more" Jem'Hadar warships is on their way through the wormhole.

There "could be fifty" ships constructed in Orias in secret by the Obsidian Order in "Defiant." Roughly twenty actually show up in "The Die is Cast," in which the Obsidian Order and Tal Shiar launch an attack on the Founders' homeworld.

"The Way of the Warrior" - the Klingon Empire attacks the Cardassian Empire with a total of roughly one third of their fleet, which includes somewhere over one hundred warships. How much more is unclear without reference to other materials. "When it Rains" - there will be 1500 Klingon warships modified to the new reactor standards within a few days. These will be outnumbered 20:1 by the Dominion fleet, which is therefore 30,000 strong. 50 ships lost along with a set of spacedocks is considered a high price for the Dominion taking DS9, however.

Seventh Fleet had 112 ships before engaging the Jem'Hadar in "Time to Stand," and only 14 afterwards, a figure also confirmed in "Inquisition."

In "When it Rains," the fleet at Chin'Toka numbered 312.

In the battle to retake DS9 in "Sacrifice of Angels," "thousands" of waiting Jem'Hadar ships (2800) sit on the other side of the wormhole, waiting to reinforce the Cardassians. The Dominion fleet defending the wormhole (1254) outnumbers the Federation ships engaging it (609 vessels, 60% assembled) by 2:1. Given that the Federation fleet was losing until the Klingons showed up. The balance of force was close to even once the Romulans joined the alliance; this suggests a total fleet of around 15,000 warships for the three powers.

At least 11 ships dropped out en route, giving us a ~2% mission abort rate for the battered fleet.

"The Dogs of War" - a fresh offensive against the Dominion would cost "thousands of ships." The allies therefore have multiple thousands of warships remaining. The Cardassian rebellion in "What You Leave Behind" plans to cut the Dominion fleet off from ground support, leading to its defeat.

	In Deep Space Nine, we see the largest fleets assembled in Star Trek. Large deployments of hundreds to several thousand ships were common in the Dominion War; typical urgent missions involved dozens of warships. It is possible for small resourceful factions within any major power to construct dozens of ships in secret within a couple years' time. The Klingons' battlefleet numbered several thousand warships, declining significantly in the latter phases of the Dominion War. By late in the final year of the war, the Klingon Empire still had at least 1500 warships conducting offensive operations, while the Alpha Quadrant Dominion (Breen, Jem'Hadar, and Cardassians) had 30,000 warships between them. The Cardassians themselves were facing defeat from one third of the Klingon fleet; given that the Galor class making up the backbone of the Cardassian fleet is not too much weaker than the typical Klingon warship, it is likely that the Cardassian fleet after the Federation war was 1/3-1/2 the size of the Klingon fleet. The Klingon-Romulan-Federation alliance operated many thousands of warships, deployed in joint fleets numbering 100-400 ships. The number of vessels per fleet appears to have increased over time thanks to increased Romulan support of the war, with thousands of ships apparently lost on both sides. The Allies may have had as many as 15,000 warships overall. In "Defiant," we see 26 Cardassian warships searching for the Defiant; they plus 15 outposts report no sign of the Defiant within a half hour's time. Once it is found, ten warships box it in behind from 6 light years away, while five Obsidian Order ships lie ahead of it. Twenty ships attack the Founder's homeworld in "The Die is Cast," intending to wipe it out. They are ambushed by a somewhat larger force. In another high-pressure raid, the Klingons attack Trelka V with five birds of prey in "Once More Unto the Breach." "The Way of the Warrior" - the first wave of the Klingon assault, striking from DS9, has "well over one hundred ships" in it. At least thirty warships will be stationed around Ty'Gykor at any given time in "Apocalypse Rising." "In Purgatory's Shadow" a fleet of "fifty or more" Jem'Hadar warships is on their way through the wormhole. There "could be fifty" ships constructed in Orias in secret by the Obsidian Order in "Defiant." Roughly twenty actually show up in "The Die is Cast," in which the Obsidian Order and Tal Shiar launch an attack on the Founders' homeworld. "The Way of the Warrior" - the Klingon Empire attacks the Cardassian Empire with a total of roughly one third of their fleet, which includes somewhere over one hundred warships. How much more is unclear without reference to other materials. "When it Rains" - there will be 1500 Klingon warships modified to the new reactor standards within a few days. These will be outnumbered 20:1 by the Dominion fleet, which is therefore 30,000 strong. 50 ships lost along with a set of spacedocks is considered a high price for the Dominion taking DS9, however. Seventh Fleet had 112 ships before engaging the Jem'Hadar in "Time to Stand," and only 14 afterwards, a figure also confirmed in "Inquisition." In "When it Rains," the fleet at Chin'Toka numbered 312. In the battle to retake DS9 in "Sacrifice of Angels," "thousands" of waiting Jem'Hadar ships (2800) sit on the other side of the wormhole, waiting to reinforce the Cardassians. The Dominion fleet defending the wormhole (1254) outnumbers the Federation ships engaging it (609 vessels, 60% assembled) by 2:1. Given that the Federation fleet was losing until the Klingons showed up. The balance of force was close to even once the Romulans joined the alliance; this suggests a total fleet of around 15,000 warships for the three powers. At least 11 ships dropped out en route, giving us a ~2% mission abort rate for the battered fleet. "The Dogs of War" - a fresh offensive against the Dominion would cost "thousands of ships." The allies therefore have multiple thousands of warships remaining. The Cardassian rebellion in "What You Leave Behind" plans to cut the Dominion fleet off from ground support, leading to its defeat.	DITL estimates the Klingon fleet lost 2/3 of its strength during the Dominion War.