In the year 2031 Humanity decided that the only way humans could advance forward is as one nation, so thus under the UN humanity created a new nation named "Terran Union"
Then in 2134 Humanity managed to build multiple biosphere colonies on Mars and Moon.
After that in 2249 Humanity created three colony ships each equipped with a sublite speed engine. The ships also had means to terraform planets. All three of them were sent to Proxima Centauri. All three ships combined had a population of 700 million.
A farming world was created on Proxima Centauri B
The first contact with alien life came in 2386 when 12 ships resembling snail shells Jumped into the system and begin to bombard the agricultural planet. And deployed troops on the planet.
The troops looked like humanoid grasshoppers and they fired at the civilians killing them. After killing them they ate the remains. The planet had little self defense measures.
You could be reading stolen content. Head to the original site for the genuine story.
A few hours after their arrival 5 massive ships resembling pens twice the size of the ones before and one gigantic the size of the moon that resembled a flying saucer attacked the 12 ships that came before, each ship wend down within minutes. They deployed their own troops to the planet.
The ones which came from the pen shaped ships resembled lizardmen with dragon like wings and the ones from the saucer looked like gray aliens with crested heads and tentiles on their back.
They saved the planet but the grasshopper aliens managed to kill more than a million people before they arrived. The lizardmen aliens said that they were the Aargo and the grays said that they were called Harvey. They told humand that the grasshopper aliens were the Seloi and they were Litteral grasshoppers on a galactic scale. The 12 ships were being chased by them.
They saw humanity's potential and decided to help us create FTL Drives and create a United Alliance Named the Nexo Allience.
In 2600s with over 300 star systems to its name Terran Union officially became a galactic ampire now alongside Aargo and Harvey humans continue to fight the Seloi which takes us to the begaining of our story in the year 3081.