Porotheiun are the speices who untill the year 2075 habitated the planet Poros allong with many others through out the galaxy and later the andromeda galaxy. After many years of war the Porotheiun have been pushed from a galactic empire down to a almost extinct race hiding in somewhere in the universe, and we are not really sure wether or not they are alive anymore.
Around 20 million years ago, a massive planet was impacted by a massive comet containing bacterial life. The impact caused the planet to split into two. the comet bounced off and created the moon whilst the two planets moved away from each other in the same orbits at slightly different speeds. Over time life began to grow on both planets until on one of the planets that would later be called earth a sentient race emerged called Humans and on the planet to be named poros porotheiun emerged although these would emerge before humans and thus became space capable before earth.
Around 2000BC Porotheiun scientists discovered basic space flight and soon after Earth, they began to study humans determining how capable we are as a species.
In 1000AD The Nunny are discovered in the far side of the universe. They instantly go to war as The Nunny are a very aggressive race.
in 1947AD one porotheiun ship was shot down in Roswell although no bodies were recovered, but this was the first step in the set backs in the porotheiun-terran war.
In 2015 a small probe from earth discovered Poros and later they sent another one that breached proximity so it was destroyed . A few weeks later the earthlings started building small orbiting satellite weapons loaded with nuclear warheads, this the Porotheiun high council classed as a act of war. The Porotheiun high council prepared three Saucer classed Ships to eliminate all humans. The ships however took 11 weeks to prepare as the only ships they could spare were old and damaged from the war with the Nunny, and in this time 48 satellites were operational around Earth. the first day of attacks went well with the destruction of 15% of earths city and population however on the second day the Earthlings used the PDS to destroy the porotheiun fighters and saving their planet.