Our Timeline of Major Events

The Battle of Wolf 359 sees the Borg Cube come close to Earth while the Mars Defence Perimeter was a failure of epic proportions as the unmanned pods were too few and ineffectual against the Borg. Thirty-nine Starfleet ships are lost in the battle.

The Bajoran wormhole is discovered, connecting the Alpha Quadrant to the Gamma Quadrant. This leads to the establishment of Deep Space Nine and first contact with the Dominion.

The Klingon Empire breaks diplomatic relations with the Federation and declares war on Cardassia. The Klingons are resisted but several worlds are annexed. After more defeats, Cardassian forces ally with the Romulans and begin successful counterattacks.

The Cardassian-Romulan alliance agrees to a cease fire with the Klingons.

First Cardassian cloaked ships appear, and Klingons are driven back into their own territory. Gowron is assassinated by a disgruntled council member, and the Klingon Empire splits into factions. Bajor is admitted into the Federation.

The Breen attack on Earth during the Dominion War sees the Breen launch a devastating attack that demoralizes Starfleet and the people on Earth. The newly installed defense grid repels most of the attack, but the psychological damage is done.

Events of Star Trek: Nemesis - Shinzon's coup in the Romulan Star Empire leads to the assassination of the Romulan Senate. Shinzon is defeated, but the political instability in the Romulan Empire continues.

The Dominion bursts through the wormhole and destroys Deep Space Nine. They also successfully take over Bajor. A Federation counterattack fails. DS9 survivors are reassigned to new posts.

Cardassia is attacked by the Dominion but resists. The Cardassian-Romulan alliance dissolves.

After 11 months, the Dominion is sent back through the wormhole. The USS Titan stays in orbit of Bajor in case of a new offensive. A new Starbase begins construction at the wormhole entrance (Starbase 968).

The USS Voyager finds a stable wormhole to the Gamma Quadrant, providing a route home. The Attack on Mars - A massive synth attack devastates the Utopia Planitia Shipyards on Mars, destroying the rescue armada being built for the Romulan evacuation. The attack kills over 90,000 people and leads to a Federation-wide ban on synthetic lifeforms.

A very battered USS Voyager appears through the wormhole during the opening of Starbase 968 at Bajor. Captain Janeway was killed during the Gamma Quadrant trip. Captain Chakotay is officially accepted by the Federation but declines the offered position and returns to the Maquis.

The Hobus star goes supernova, destroying Romulus and Remus. The Federation's rescue armada, destroyed in the Mars attack, is unable to assist. Billions of Romulans die, and the Romulan Star Empire collapses. The Romulan people become scattered refugees across the quadrant.

The Maquis demand recognition by the Federation as a separate entity so that a treaty may be arranged. The Maquis sign a peace accord with the Federation.

Unification talks between Vulcan and Romulus finally fail, but some Romulans defect to the Federation.

A scientific treaty between the Federation and the Romulans is signed, allowing the Federation to develop cloaking technology.

A new exploratory class of ship, the Spectre class, is developed. Construction begins at Earth Station McKinley. The Spectre uses a variant of the phasing cloak used on the USS Pegasus.

The Zhat Vash conspiracy is exposed, revealing that the synth attack on Mars was orchestrated to prevent the creation of synthetic lifeforms. The ban on synths is lifted, and the Federation begins to reconsider its relationship with artificial life.

USS Spectre and USS Vampire, both Spectre class, complete construction and leave spacedock for Starbase 968.

Maneuvering problems on Titan class ships are partially resolved. The Borg begin assimilation of the Gamma Quadrant through a wormhole connection to the Delta Quadrant. The Borg Collective makes a final attempt to assimilate the Federation through a temporal anomaly. The threat is ultimately defeated, but it marks a turning point in Federation-Borg relations.

Weakened by the Borg war, the Dominion signs the Treaty of Bajor with the Federation, granting a large section of Gamma Quadrant space to the UFP. In the wake of the treaty, the Cardassian government is overthrown and the military divides into factions.

Cardassian criminal Gul Dulon leads a rebellion on Cardassia. The Cardassians attack and occupy Starbase 968. Starbase 45 is destroyed by Captain Julius Phelps, his mind under the control of Gul Dulon, who also possessed a trilithium weapon. Dulon's plan to destroy Earth's star is averted at the cost of the USS Titan and the star Proxima Centauri, with great loss of life. The Federation signs the 'Accord of Three' with the Romulan Star Empire and the Lans Confederation to set up a defense strategy against the Chudoxn. Admiral Janeway goes back in time to rescue the USS Voyager, altering the timeline to ensure Voyager's earlier return to the Alpha Quadrant.

Several ships mysteriously appear near Earth, including an Alternate Universe USS Spectre. The crew is debriefed and retrained, eventually assigned to Starbase Valhalla in orbit with Utopia Planitia Fleet Yards at Mars. The 52nd Fleet is officially launched. Station Geneva, USS Nimitz, USS Wraith, USS Freedom, USS Boudicca and the Cochrane Research Facility are assigned to the squadron. Starbase Geneva is completed and commissioned. Admiral Robert LoDona takes command of the 52nd Fleet.

The USS Nimitz disappears from official channels for a month before reappearing at Earth to challenge Admiral Doenitz, who tried to have her destroyed. Admiral Robert LoDona becomes commander of the 52nd exploratory fleet and later orders the entire fleet further into Beta Quadrant, launching a quasi-civil war with select members of the Starfleet Admiralty.

Hostilities begin in earnest. Battles are fought throughout the Federation on many core worlds such as Andoria, Betazed, Vulcan, and Tellar. Andoria pays a heavy price in defiance of Admiral Doenitz and is razed. The USS Spectre mounts an away team mission on Betazed under Captain Remae K'Tell to retrieve Debora Ansara, niece of Admiral Rodrigo Doenitz. Captain Remae suffers an accident resulting in the loss of his lower limbs. The ships of the 52nd and their Klingon allies mass for an attack on the Mars Defence Perimeter. During the battle, the USS Nimitz and USS Champlain are destroyed. The USS Boudicca breaches the defenses of Starbase Valhalla, bringing down the defense stations. The 52nd is victorious. After a brutal conflict, Admiral Doenitz is defeated, and the Federation begins to rebuild. Admiral Doenitz flees but is later arrested and imprisoned. President Rondar Nell is reinstated. The fleet operates key assets including Starbase Freedom and USS Hades, working to restore Federation influence and protect member worlds.

The Federation civil war ends. However, rather than returning to exploration, Starfleet adopts a defensive posture, bringing back operations and ignoring what's happening outside its own borders. A new, less aggressive and more conservative leadership takes over. New policies direct the Federation to cease expansion, exploration and generally anything that could upset anyone else. Many worlds on the border of Federation space become exposed to attacks and are taken over by opportunists.

In a move that shocked everyone, Andoria departs the Federation, stating it sees no point in continuing if the union serves no purpose. Andoria closes its borders and demands the Federation return all technology belonging to them. To avoid conflict, the Federation agrees, even though it could take decades. An increasing number of member worlds start to leave the Federation, and the beginning of a general contraction commences that will continue for over 20 years.

For the first time in many years, a new member world joins the Federation: the Cardassians. They are welcomed, though with more than a few objections from many quarters.

Operations with the 52nd Fleet end, and many others across the existence of the Federation. Starfleet disbands most of the fleet, spending more time with diplomatic missions, believing they can talk their way out of any issue.

"The Incident" - Earth is attacked on April 23rd. An antimatter bomb detonated in tunnels beneath Federation Headquarters in San Francisco. The explosion creates a blue antimatter wave that expands outward, vaporizing millions while leaving physical structures relatively intact. By this time, the Federation has lost a quarter of its member worlds. The attack becomes a symbol of what Starfleet had become and what was at stake.

A crisis inside the Federation occurs, an emergency is declared. President Stiave Atremi, a Bajoran, is elected. However, many do not want the aggressive, expansive, militaristic ways of the past. On May 2nd, President Atremi meets with Admiral Remae Ktell to discuss rebuilding Starfleet and returning to exploration.

Admiral Remae Ktell is assigned to run the newly reinvented Mars Defence Perimeter (MDP). On May 9th, he arrives at Mars to find the facilities deserted, with much of the Andorian technology removed. On May 10th, Admiral Ktell takes command of the USS Republic, an Odyssey-class starship that had been parked at the shipyards.

On June 1st, personnel begin arriving on Mars. Junior personnel, mostly Ensigns, gather to begin the rebuilding effort. Admiral Ktell organizes them by department: Science, Engineering, Security, Medical, Pilots, and Intelligence. The 52nd Fleet begins to reform under new leadership, dedicated to rebuilding Starfleet and returning to exploration.