January 2157: Romulans attack one of the Alliances' resupply bases, the Andorian colony on Threllvia IV. At the time, only one Andorian ship was present to defend, the Ka’Thelan Krotus. After a valiant attempt, the Ka’Thelan Krotus was unsuccessful in fighting off the Romulan attackers, and the colony was destroyed by atomic weaponry fired from orbit. The Imperial Guard used the Battle of Threllvia as a battle cry, and by the end of the month, Andoria declared war against the Romulans
May 2157: A squadron of Romulan birds-of-prey invaded the Berengaria system. The Alliance forces, including Earth Outpost 1 and the UES Atlantis tried to defend the system, but ultimately failed. Both the ship and the station were destroyed.
July 2157: Romulan forces increased their pressure on the Andorian and Earth fronts. They won several victories against the Alliance. There is significant loss in morale throughout Starfleet.
October 2157: Starfleet launches the new Yorktown-class battleships – reflective of a top-secrete and classified effort, “The Achilles” project sees several ships join the ranks of Starfleet: UES Achilles, UES Washington, UES Olympia, UES Yorktown with more in development.
January 2158: The UES Intrepid NX-07 nears completion of its NX/Columbia class refit. It is assigned to Commodore Roya Eskandari who will take reigns of the vessel as well as the Intrepid Flotilla Group: UES Yosemite (Deadalus Class) and UES Republic (Intrepid-NV Class).