[ WP ] A peaceful alien race is besieged by another race in the same galaxy . As their last planets fall and their home-world comes under threat they do the unthinkable . They ask for aid from the only known creatures more brutal than their foes in exchange for FTL technology . Humans accept the deal .

I posted this to a similar WP a little while ago. I made a few modification to fit the prompt better. Hope you like it. 
 
 Recently appointed Subantian President: “... What have these “ earthlings ” done to warrant exclusion from galactic society? 
 
 Secretary of War: “ Mr. President... These ‘ earthlings ’ must be an exception! Have you seen the recorder playback of their behavior? Their ‘ World War 1 ’, ‘ World War 2 ’, various ‘ genocides ’. ‘ Genocide ’, a term that we had never even conceived of! The complete eradication of a species or race - *complete eradication! These earthlings, repeatedly attempt, or actually implement! 
 
 Millions, if not billions of their OWN species dead, often in the most horrible ways never imagined!! We cant! We cant make them aware of us, let alone invite them to fight for us! Regardless of the losses we have suffered to the invading Triblabians, we can ’ t bring them into the galactic society, we CAN NOT, it will be our end, better to surrender to the Triblabians, now. ” 
 
 President: “ Secretary of War, just make it so, Now! ” 
 
 6 Earth months later... 
 
 Secretary of War: “ Mr. President, we gave the Earthlings antiquated weapons technology, we gave them sub-light, and interstellar jump travel, and a few cargo ships, along with access to one of our out-dated manufacturing planets. ” 
 
 Secretary of War, continuing: 
 
 “ The Good News: The back of the Triblabians fleet is broken, most of the worlds they captured have been returned, or recaptured. The Triblabians have sued for peace, and are offering unconditional surrender. The Bad news: the Earthlings sir... They refuse to return to us the planets they took from the Triblabians. They call it ‘ the Spoils of War ’. ” 
 
 Secretary of War: “ Sir, if I may say so, it is absolutely frightening what they have done with our technology in such a short time. The cargo ships... they have become Super dreadnaughts. There is not a single empty space on them that does not have a weapon or guidance system attached. Just one of these ships wiped out over 300 Triblabian battle cruisers. The Earthlings now appear to be designing their own war ships... 
 
 President: “ Do we have a watch on what they are doing? ” 
 
 Secretary of War: “ Yes sir! However, they have been using something they call ‘ encryption ’ to hide the contents of their designs, and communications. We have a copy of all of their designs, and most of their communications, but we can not make any sense of it. ” 
 
 President: “ Keep a watch on them, and keep trying to get those designs. Anything else Mr. Secretary? ” 
 
 Secretary of War: “ Yes sir, their weapons... They mostly ignored our laser weapons, and developed their own weaponry. They took our sub-light engines, and turned them into massive fusion weapons! These ‘ fusion cannon ’ as the Earthlings call them hurl magnetically confined fusing tritium at a target, upon impact the target effectively evaporates. 
 
 They took our shielding technology, and made a projection device, they project a shield as a thin beam the thickness of a few molecules, and mounted it on a swivel. They call it a ‘ Vorpal Blade ’. It can slice through just about anything, they used it on 3ED47 prime, and nearly sliced the planet in half. 
 
 The Earthlings took our tractor technology, combined it with magnetic confinement tech of their own, and made an automated ‘ Space mine ’. It is an autonomous device placed in an asteroid field. If a ship comes near and doesn ’ t bear the needed id signature, the ‘ mine ’ using the tractor beam grabs near by rocks and using the magnetic confinement fields accelerate them at the enemy ship. ” 
 
 President: “ Have we tried to capture one of these ‘ mines ’? ” 
 
 Secretary of War: “ Yes we did, the results were less than optimal. 3 ships lost, and a 4th badly damaged, half her crew dead. ” 
 
 President, gets up and starts pacing the room... 
 
 President: “ Anything else to report? 
 
 Secretary of War: “ By far the worst weapon is the ‘ Nova Bomb ’. They used our anti-matter power plant, and turned it into a missile. They place a shield around a power plant, and a remote turn off for the shield, added a small sub-light engine and aim it at a star. When the device reaches the core of the star, they turn off the shield. This causes an annihilation event in the core of the star, resulting in the star going nova; killing EVERYTHING in the system. It was the use of a ‘ Nova bomb ’ that convinced the Triblabian to sue for peace. Recently, we understand they have been tinkering with our hyperspace jump technology, but as of yet we have no idea what they are doing with it. ” 
 
 Secretary of War: “ Just a moment Mr. President... ” < listening to subdural microphone > 
 
 Secretary of War: “ ummm... Mr. President, there seems to be 2 problems.... First, we can ’ t find the manufacturing planet. ” 
 
 President < stopping mid-stride >: “ What do you mean we can ’ t find the manufacturing planet?!?!? It is a planet after all. It is not one to go wandering out a jolly jaunt around the nebula, or nip out for a bit of stellar dust. ” 
 
 Secretary: “... well actually we can ’ t find the entire system. It seems it is just… gone... the star, and all of it ’ s planets.. poof! gone! ” 
 
 President:?!?!? 
 
 Secretary of War: “ The other matter, Mr. President, there is an Earthling here to see you... She says she is from the... let me get this straight.. ‘ New Galactic Earth Empire ’, she is an emissary of her ‘ Imperial Majesty, and Ruler of all the Stars ’; and she wants to discuss the terms of our surrender... ” 
 

