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First Expeditionary Fleet

The Star Army of Yamatai's First Expeditionary Fleet is a strong, experienced organization of ships and soldiers.

Until YE 41 the fleet was based at Hanako's Star and controlled the Ketsurui Military Sector. The 1st XF is closely associated with the Ketsurui Clan, Motoyoshi Clan and Ketsurui Fleet Yards and Yugumo Corporation.

First Expeditionary Fleet
Fleet Profile
Current Commanding Officer Shimizu-Motoyoshi Akina (清水本吉明菜)
Non-Colony Fleet Commanding Officer Motoyoshi-Yamada Ayano
Former Commanding Officer Ketsurui-Motoyoshi Katsuko
Oversight Star Army Command
Mission Profile Kuvexian War
Status Active
Current Focus Post Kuvexian War Operations
Base of Operations Gemini Star Fortress (NK-X1-06)
Flagship YSS Mazu
No. of Warships 581 (151 Support Ships 80 of which are automated units)
Manager Miyako

Current Assignments by Group

Fleet Deployment Assignments:

Current First Expeditionary Fleet Assignments
Group Assignment Location
Tokyo Expeditionary Battlegroup Liberating Kimirthro
Taihō Expeditionary Strike Group Colonization Initiative Alliance fleet In Transit
Keiyō Expeditionary Strike Group Patrol Asura System
Task Force 48 Relief and Aid Tange System
1XF Task Fleet Various Tasks Yugumo Cluster

Important Ships


The First Expeditionary Fleet was formed early in the Star Army's history, probably in YE 22. At that time it was based out of Hoshi no Iori and commanded by Ketsurui Yui.

Fourth Elysian War

The First Expeditionary Fleet participated in the Fourth Elysian War.

First Mishhuvurthyar War

The First Expeditionary Fleet participated in the First Mishhuvurthyar War.

In YE 29, the YSS Sakura received orders to meet with the rest of the First Expeditionary Fleet for an attack on Refidh1)

Second Mishhuvurthyar War

During the Second Mishhuvurthyar War, the First Expeditionary Fleet was heavily involved and conducted the final raid on the NMX Headquarters at Rabaal System in YE 34.

Kuvexian War & Reestablishment

In YE 41, following a major conflict with the Interstellar Kingdom Of Kuvexia, the majority of the existing First Expeditionary Fleet was de-established and remaining ships were transferred to the First Fleet per the orders of COMSTARARMY Ketsurui Yui. The orders for re-establishment were made immediately, and Ketsurui-Motoyoshi Katsuko was given the command and oversight of the rebuilding of the fleet from scratch.

Taisho Ketsurui-Motoyoshi Katsuko has promised that the new First Expeditionary Fleet will set a new standard of Expeditionary Warfare for the Star Army of Yamatai.

Its Headquarters was moved to the Jiyuu System in YE 41 along with the rest of the fleet.

In YE 42, after the completion of the YSS Tokyo and over three hundred ships, the re-establishment was considered a success. It would be just the beginning as the fleet began to take an active role in the Kuvexian War.

Battle of Glimmergold

In 1月 YE 43

Major Timeline Entry: Battle Of Glimmergold

The YSS Tokyo led the Tokyo Expeditionary Battlegroup and the Taihō Expeditionary Strike Group into battle first at the liberation of the Scrapyard System and then at the Battle Of Glimmergold. The YSS Tokyo was commanded by Taisho Ketsurui-Motoyoshi Katsuko and Shôshô Motoyoshi Eri; they were joined on the bridge by Tokyo Himawari, the ship's avatar, and Taisa Kage Yaichiro. The brave pilots of the 17th Stratigic Bomber Group, "The Dragons" seen action in the battle. 17th Strategic Bomber Group "Dragons" pilot, Sasaki Miyu ended up in command of the group and performed with notable bravery. The First Expeditionary Fleet assisted in the defense of the Essai Machine Planets and provided fire support for other Star Army of Yamatai units.


The YSS Tokyo took severe damage in the battle and in its aftermath is expected to be at Gemini Star Fortress for three months or more for repairs. Following the Battle Of Glimmergold, Taisho Ketsurui-Motoyoshi Katsuko retired from the service of the Star Army of Yamatai with the hopes of making a run for public office. Chujo Motoyoshi-Yamada Ayano was named acting commander of the First Expeditionary Fleet.

Those who participated in the battle were awarded the Glimmergold Star, and took part in Victory Day YE 43 celebrations. The remains of the 17th Stratigic Bomber Group, "The Dragons" were transferred to the YSS Mazu.

The Taisho

Currently, , hime Taisho Shimizu-Motoyoshi Akina (清水本吉明菜) is the Commander of the Fleet.

Former Taisho

The Taisho of the First Expeditionary Fleet of the Star Army of Yamatai is Ketsurui-Motoyoshi Katsuko, a 22 year veteran. She can generally be found on the YSS Tokyo or Gemini Star Fortress, but also frequently works out of her fully equipped office at Jiyuu Jo.

The Evening Orchid of Ketsurui-Motoyoshi Katsuko

The Command Staff

Key Officers involved in the leadership and day-to-day operation of the First Expeditionary Fleet of the Star Army of Yamatai

Former Command Staff

Command Support Staff


The First Expeditionary Fleet flag features a triangle with the familiar bellflower symbol featured in the flag of the Yamatai Star Empire. The rest of the flag matches the same dark red background as the fleet emblem with the rising phoenix which represents the resilience of the fleet. It also has the fleet's identification number, “XF 01”, which indicates it is the First Expeditionary Fleet. “Risen From Ashes”, the fleet's motto is written across the bottom of the fleet's emblem.

1XF Mission

The First Expeditionary Fleet's mission is to:

  • Engage in combat with the Enemies of Yamatai.
  • Deploy and coordinate in offensive and defensive strategies as a functioning arm of the Star Army of Yamatai.
  • Survey and colonize (and/or terraform) new systems as feasible, ensuring Nekovalkyrja survival.
  • Test developing technologies.


Star Army Bases for the First Expeditionary Fleet.

Fate Bastion

Fate Bastion is a located in the Shugosha System on Shugosha I. Designed to provide an effective launch point for operations in that system as well as defend the Industrial Colony of Keiyō City. The second of the Bastion Bases activated in YE 42.

Fort Tokyo

Fort Tokyo is the primary training and administration Star Army Base for the First Expeditionary Fleet. It is located on Jiyuu III in the Jiyuu System. The symbolic base is located across a narrow channel from Jiyuu Jo and the artificial island it is situated on.

Gemini Star Fortress

Gemini Star Fortress is the Headquarters of the First Expeditionary Fleet. It is a Zodiac-Class Star Fortress which is currently located in the Jiyuu System. In addition to serving as the headquarters, it also serves as the primary production facility for the fleet.

Legacy Bastion

Legacy Bastion (Katsuko no Iori) is a restored Iori-Class Star Fortress that has been placed as a shipyard and defense base in the Gensou System.

Nemesis Bastion

A secret subterranean First Expeditionary Fleet Star Army Base, Nemesis Bastion, has been constructed Siren I. A strategic deployment base capable of launching a resistance in the event that the Siren System or Jiyuu System are invaded. This was the first of the Bastion Bases activated in YE 42.

Aquarius Star Fortress

Aquarius Star Fortress is a unique First Expeditionary Fleet Zodiac-Class Star Fortress positioned in the Koukotsu System. It features amazing aquatic designs and internal aquarium environments.

Leo Star Fortress

Leo Star Fortress is a Zodiac-Class Star Fortress transferred into the fleet from the destroyed Tenth Fleet in YE 43. The base is currently undergoing refurbishment an refit.


The Flagships of the First Expeditionary Fleet.

YSS Tokyo

The YSS Tokyo, an Izanagi-Class Dreadnought, is the flagship of the First Expeditionary Fleet. It completed construction in YE 42 at Gemini Star Fortress. The ship is under the command of Chujo Motoyoshi-Yamada Ayano(CO) and Taisa Kage Yaichiro (XO).

First Expeditionary Fleet Plots

Join one of these great plots for the Star Army of Yamatai, or check out the Plots list for a full list of plots in the SARPiverse.

Hinomaru Sunrises

Hinomaru Sunrises starts where Resolutions Of The Ghost leaves off. The Kuvexian War is over and the fleet begins new missions in its aftermath.

The Game Masters for this plot are Andrew and Demibear.

Resolutions of the Ghost

Resolutions Of The Ghost was the main plotline for the First Expeditionary Fleet. It has a shifting focus of locations mostly centered in the Yugumo Cluster and for now is using the YSS Tokyo as its ship of focus. It serves as a launchpad for the 17th Strategic Bomber Group "Dragons" and Task Force 48 as well. The plot concluded in the beginning of YE 43.

The Game Masters for this plot are Andrew and Yuuki.


OOC Notes

This page is managed by Miyako, with help from Andrew and Yuuki.

OOC ManagerMiyako
OOC ThreadOOC Thread
Last Checked2023/09/25

stararmy/fleets/first_expeditionary_fleet.txt · Last modified: 2023/12/28 15:02 by