Sailor senshi, or Sailor Soldiers, are not new nor unknown to the other world leaders of Earth. In fact, they've been observing the Japanese rumored 'Sailor senshi' for the last few years. Watching and understanding how they work, how they move about and operate.  With the information they had gathered, there was a tentative truce between them all, they pooled their resources into creating an off-grid island in the Atlantic ocean.  Unmarked on any map, the island would house a seemingly normal city with all the amenities available but with the protection of a base stationed there. 

This island is known as Atlantis, home to the Earth's secret soldiers that handle other threats that the Sailor senshi in Japan knew nothing about.  

It was called Project N.E.O. .

N.E.O., which stood for Next Earth Offense, was the brainchild of two military scientists, General Cassandra Wilson and Dr. Jacob Harrington. They were the first to become aware of the 'Sailor senshi - or Soldiers' phenomena after receiving video documentations as early as 1992 with the appearance of a strange girl calling herself 'Sailor V'.  With the quick succession of events that followed nearly two years later, the proposal was put forth to create a team with the UN's approval and support to deal with " forces beyond our understanding" and to "Ultimately protect humanity and the Earth should the 'Sailor Soldiers' of Japan fail in this endeavor."   There is also an unspoken hint that suggest they may turn on them but was never questioned. 

With the Approval of the UN during a secret meeting off session, the construction of 'Atlantis' was well underway. 

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In 2000, construction was complete.  It was time to send in the ones that had already awakened.  From all over the world, both new and old Sailor Soldiers were sent to the island with their families, if they had any.  Their room and board were free, as long as they commit to their training.  
At the time, it had greatly puzzled many of the scientists- including both Dr. Harrington and General Wilson, as to why most of the known Sailor Senshi were women with a few men sprinkled in and the occasional magically strong person.  There were other mysteries that appeared along side them, including the discovery of talking animals that sometimes accompanied these people. 

Rather than try and agitate them, General Wilson had suggested that they facilitate amiable relations with these animals and help established them as an important part of the Island's hierarchy.  

Thus the creation of The Counsel, where all the advisers of the Sailor Soldiers could gather and discuss not only their charges' concerns but their own as well as devise plans to help them and the overall well-being of them with the General and Doctor. 


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In 2001-

With the coming of King Endymion and Neo Queen Serenity in Japan, many nations became nervous, if not down right worried, what this would mean to them and their own power.  Especially those that have had alteractions with the country once before which still held some deep wounds that have yet to truly heal over with time.   Because of this, the UN was called into session, which meant the newly made King and Queen were also brought before them.  It did not end in a single day, but many months of traveling and negotiating until a document was produced for them to all sign as an agreement for lasting peace among them all. 

The important part of it was that King Endymion and Neo-Queen Serenity's power and influence does not stretch beyond the borders of Japan. That they do not serve as the mouthpiece for all of humanity and therefore cannot decide for all what is best or not. That their actions are to always be held accountable and any move on their part that is seen as 'aggressive' will be met with equal measure. 

In return, they and their people would be allowed visiting rights to Atlantis as well as the support from them and the UN if anything should happen that they couldn't handle on their own. 

With this agreement in place, all seemed to be well. 

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In 2015, the current number of Sailor Senshi seemed to have slowed to almost none. Most of the teams were paired based on elements rather than the mythology they symbolize or the celestial bodies that they represented. Though the Advisers have had more leeway in the formation of these teams, an actual 'complete' team has always been incredibly rare. This is attributed to the fact that some are simply incompletely due to no more awakening at this time or simply have not been reborn yet. 

Reincarnation studies have been launched with the coming of the knowledge of the existence of this 'Galaxy Cauldron'.  Though many of the awakened Sailor Soldiers have no memory of this place or it's existence, three older Sailor Soldiers- Sailors Ptah, Illapa, and Morpheus- have similar stories that are nearly identical to each other. Thus, proving the theory of the Galaxy Gauldron to be more tangible than not. Further studies were needed and of those that wish to participate, would undergo psychological testing to establish a baseline before using hypnosis- thanks largely by Sailor Hypnos's powers- to recall not only past lives but the experience of existence in the Galaxy Cauldron.  Among them are also one of the Sailor Guardians from Japan, Ami Mizuno- alias Sailor Mercury to observe these testings as they are completed.  

Mizuno has also spoke of the Galaxy Cauldron, and how it exists in what is known as Sagittarius Zero, which is to say it is inside of the center of the Milky Way galaxy.  Any thoughts or plans to observe it is rendered useless due to the fact that it is theorized to be inside of the black hole that is the center of our galaxy as well.

A new theory has been put forth that may shift or change the worldview of life after-death. Such a shift could be catastrophic to human consciousness and will to live completely if it is found out.  With this explained to the world leaders, a vow was made to keep it to themselves, for the good of humanity.

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In 2029,  they first note the difference in aging in the population. Beyond a certain age, it seems most people in their twenties and older have stopped aging.  With this new phenomenon they originally believed it was the work of a sinister force.   Through investigation and talks, it is discovered that the source of this strange longevity is derived from a priceless stone that emits an oddly powerful energy which is in the safekeeping of Neo Queen Serenity. 

It is found that those of Crystal Tokyo had begun to stop aging almost a decade ago.  Neo Queen Serenity admitted that she knew of the consequences of herself and King Endymion's union and sequential ascension to the throne could lead to this side-effect.  She assures the UN that it was not her direct intention for any of it to happen but it is impossible to reverse the effects.  The maximum life expectancy is said to be one thousand years old. 

Knowing that this would panic the public, the world leaders scramble to soften the blow of this new revelation to the rest of the populace of Earth. There would be some that would heavily disagree with this and cause mass hysteria if they did not get a handle on this. 

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In 2100, a powerful psychic by the name of 'Death Phantom' appeared in Crystal Tokyo, Japan. With his coming, the cities across the lower half of Japan have become inflicted with a murderous rage. Those that were mysteriously not effected by this were usually slaughtered in the process. Since the core of the Sailor Guardian that resided there could not be everywhere to protect the rest of the country, Atlantis dispatched several teams to the affected areas to try and save what they could until Neo Queen Serenity could deal with the threat. 

After the Death Phantom was subdued, is was decided to allow those Sailor Guardians to deal with his punishment.  However, they've been warned what could happen if he is left alive.   It is reported that several of their own politicians and representatives were dissatisfied with the outcome.  
What's more, many outside of the country objected to the use of the newly discovered planet that was aptly named, 'Nemesis', which was noted to have a very erratic orbit around the Sun much like Pluto, to be used as a prison.  However, before they could object to this,  Neo Queen Serenity had already banished him from Earth. 

The fallout of this rendered more problems politically than anything else. 

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Over the next 800yrs, Atlantis has grown both geographically and population wise with the coming years. Though it still remains largely a secret to the civilian population at large, it has developed it's own societal structure. 

Obviously, civilians make up the bulk of the population, since many personnel have families that stayed and grew roots there. The educators of Atlantis are held in high regard.  Above them is the usual military personnel with their usual rankings with equal regard to psychics who join the cause as well.. Slightly above them in ranked importance are those that are and do become Sailor Soldiers. They, the Sailor Soldiers, are also split into ranks based on experience and power level. Above them are the Advisers, who are the liasons between the groups.  Equal to them, but also with their own ranking system, are the scientists that studies and help create guidelines with the Advisers. 

Above them all are General Wilson and Dr. Harrington who created the project and only answer to the UN. 

Also, thanks to the advisers and the powers of the psychics, a comprehensive list was created for potential threats to the Earth and humanity's well being.  When a problem area arises, Atlantis's contacts are notified and it is brought into review.  After judging the enemy and their abilities, they try to find Sailor Soldiers that react most strongly with the enemy as they may have had past encounters that could be useful in defeating the enemy. If one is not found, a team is assembled with the best of the abilities and is sent out to deal with the threat in the country. 

These operations can take anywhere from a week to several years to complete as no one wishes to alarm the civilian population with the existence of the threat and the Sailor Soldiers themselves. 

This went on until the Coming of the Black Moon Clan in the Year 2901, other wise known at the '30th Century'.

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In 2901, rebels calling themselves Black Moon, invaded Earth. Centering around Crystal Tokyo, they lead a vicious attack against the people there.  Unlike before, with the Death Phantom being only one with a large influence, the Black Moon had not only power but droids and ships to back up their hostile attempt to take over. 

This marked a dark chapter in not only Crystal Tokyo but in Earth's existence. 

The Sailor Soldiers stationed at Atlantis were dispatched all over the world in squadrons along with the joint military effort by the countries who supported them to fight off the Black Moon assault.  Some of the brightest and bravest had strategically damaged the enemy lines and decimated their strength. 

Many lives were lost in the war, somewhere forever changed by the losses.  But from it, many Sailor Soldiers awakened in response to the invasion. 

When the war was finally over, healing only just begun as the military took over to help with the relief effort. Many of the healing and nurturing type Sailor Soldiers were out in force to help as well, which made the efforts easier to deal with than before. What they couldn't do, technology and modern science tried to make up for. 

At the end of 2903, the UN was in session once more to make sense of the tragedy that befell the world.  Many mainly pointed the blame to the monarchs of Crystal Tokyo for allowing the Death Phantom to be banished alive when it was found that the Black Moon Clan were followers of his and had made their base the planet of Nemesis, which was mysteriously missing. 

With these accusations and wealth of evidence,  the queen became a  prisoner within her own land, restricted to the Crystal palace once more to never leave again unless called for by the Diet, which is unlike before as she was allowed to move as freely as she wished.  More restrictions followed for the King and the Sailor Guardians that sided with her.  Ultimately, fines as well as payment was to be arranged to help those affected by the war. 
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In 2904, the princess of Crystal Tokyo and her newly awakened guardians were admitted into Atlantis's program.

Other rankings:(not available right now)
Valiant (Eternal)
Noble
Glorious
Majestic (Last known upgrade. Only one has achieved it in-universe but it's unknown.) 

Neo Academy - which is near the interior of the Island and away from the city. 
Brizo Medical- Doubles as a hospital for the Students and a Mental health facility. It's south of the school.
Atlantis City- West coast of the island.
Military base- South of the island
Farmland- East and slightly north of the Island.
The Underground- underground facilities that run beneath the island and connects to all areas. Only accessible from the schools.
Our Fallen Heroes Cemetery- is to the East just a few miles from the school.

Tamika Solen: Teacher. Is also a Sailor Soldier, unknown which she is. She teaches Elementary school aged children. Her personality is motherly, patient, and kind, especially towards children. To adults, she's direct and soft spoken. Her other roles include recommendations to the system on which child was likely to awaken soon or not. 

Vivia Wen: Sailor Mena. Is your nurse. She does general check ups and the like. She's easily excitable and likes to wear fashionable clothes and wear red a lot. She can also be quick tempered but easily apologizes for her mistakes. 

Sailor Ptah: Head Librarian of both Neo Academy and Atlantis. Seldom speaks, never out of soldier form. She's a shy one and often hard to find. Usually shows up when someone is lost in the library or needs a good recommendation. It's said she's been a sailor soldier for some time even before the formation of Atlantis.  Some theorized even earlier than that.

Dr. Jacob Harrington:  Head of the medical side of the N.E.O. Project and over the Brizo Hospital. He's an odd man, seemingly scattered-brain to any that meet him.  He's quite interested in the whole Sailor Soldiers thing.  Often oversees some therapy sessions of certain Sailor Soldiers. Reports only to the UN.

General Cassandra Wilson: The other half that's spearheading the entire project. She's the Headmistress/Principal of Neo Academy.  She oversees the school's activities as well as help lead and coordinate meetings with the various fractions and is basically responsible for the going-ons. She's a reserved woman with a small mischievous side as she occasionally allows some students to slide with breaking the more harmless rules.  But gods help you if you get on the wrong side of her.