The Lost Human Colony

Prologue

Author's Note: I don't own anything related to Attack On Titan and Star Trek Discovery

100 years ago:
April 7, 2158

Today was just a normal day in the Paradis colony on Eldia III, the Terran colonists were preparing to celebrate the 50th anniversary of the Company's founding. A scientist was observing space through the Colonial Space Observatory when she noticed ships of unknown configuration. She sends the images of the ships to Central where they analyzed them through the Vulcan database on ships.

The unknown ships fired one landing craft after another. The MACOs stationed there charged at the crafts who landed with plasma rifles at the ready. The enemy doors opens up and giants came out running and snatching as many MACOs as they can and eating them forcing the suriving MACOs to retreat towards the nearest villages on their vehicles alerting the citizens to head towards the Walls. The citizens panicked as they heard the news as they ran towards the Walls.

The MACOs decided to use the villages as the last stand against them. They were able to stop these Titans as the last of the MACOs would call them as they entered the gate of the outer wall all injured. The invaders left the Titans on the planet hoping to exterminate the planet's inhabitants and returning to mine the planet's dilithium supply. From that day humanity spent all their technology on fortifying the innermost wall with laser canons and the rest of the Walls with canons that uses gunpowder.

60 years later:
2205
Humanity started to get over run by Titan Worshippers 15 years ago causing a breach in the outer wall by opening a gate giving birth to new weapons of war once the Titan was killed. Today Kuklo Mansel helped out with the Device and was able to kill the Titan that killed his parent just moments before his birth.

40 years later:
2245
When the Titans breached the outer wall, the refugees evacuated to the middle wall. Among those refugees were Eren Yeager, Mikasa Ackerman and Armin Arlert who would later join the military. Some of the refugees, were forced to join the Scouts in order for the rest of the people to stretch their food and they were never seen again. 5 years later, the trio once again saw the Titan dubbed 'the Collosal' breach the Wall allowing smaller Titans to enter. This time humanity was prepared with Titan/soldiers like Eren Kruger and Dr. Grisha Yeager holding off the invaders while the Garrison, Scouts, and Trainees. When Eren noticed his friend was about to be swallowed, he swooped in and swung Armin away as he sacrificed his life. Inside the mouth Eren noticed that he lost half of his limbs and with anger he cut through the  nape from the inside out. Admin grabs his friend and brings him to Dr Yeager who gives Eren the Titan Serum giving him Titan like abilities and able to become one at will. Humanity thinking that they would no longer survive without a fight sent out a rocket dismantling
their secret flight vehicles to do so inorder to make it reach into the stars.