This story is a sequel to Seasons Turning

Story 6 in the Savage Skies series.

Thanks to Twilight Sparkle's plan, Dawn Lightwing's story has been spread across Equestria. Back in Ponyville, Dawn and those close to him prepare for the inevitable fallout. However, their plan has some unexpected consequences, leading to Dawn's place in Ponyville coming under threat in the most unexpected of ways as Fluttershy must prove her fitness to be Dawn's mother.

However, there is something more at work behind the scenes. In order to protect his home and his place in Ponyville, Dawn must venture abroad with an unexpected and unwanted ally in order to bring an end to these machinations.

The series begins in Foal of the Forest.
Now with a TV Tropes page.

This story is a sequel to Shadow of the Sun

Story 5 of the Savage Skies series:
Autumn has arrived in Ponyville. The harvest is in full swing and all is as it should be. After enduring the trials of the past few months, Dawn Lightwing is looking forward to what promises, hopefully, to be a peaceful season before a tumultuous winter. However, the coming season has the unwelcome effect of bringing his enemies closer than he feared. However, he is fortunate to have a loving family, good friends, and somepony who is maybe more than just a friend.
The series begins in Foal of the Forest.
Now with a TV Tropes page.

This story is a sequel to Foal of the Forest

Second story of the Savage Skies series:
Dawn Lightwing has overcome many trials in his life; persecution for his unique eyes, living amongst the monsters of the Everfree Forest. But now all of that is behind him. He's been adopted by Fluttershy, mended from his conflict with Applejack, and now sits poised to go to school and live the life of a normal foal. Unfortunately, Dawn's past is not so far behind him as he would like, as his experiences have left scars on his mind and heart that threaten everything he has gained since coming to Ponyville.

Followed by Storm on the Horizon.
Now with a TV Tropes page.

This story is a sequel to Storm on the Horizon

Story 4 of the Savage Skies series.

It is well-known that the brighter the light, the deeper the shadow. Princess Celestia is unquestionably Equestria's brightest guiding light. Unfortunately, two ponies must deal with the very deep, very dark shadows that she casts.

Dawn Lightwing has overcome many trials since moving to Ponyville. However, his past and the ponies that haunted it are not as far behind him as he would like to think. Whether he likes it or not, his enemies, who draw their hatred from their irrational reverence for Princess Celestia, have found him again and he must struggle with the fact that his mere presence could a threat to his friends and his new family.

Twilight Sparkle must deal with a different shadow as she travels to Canterlot in order to learn more about the mysterious Eyes of Nightmare, as she must contend with the Noble Court, who live in the shadow of the Royal Palace itself, its members planning to use Twilight and her friends to advance their own ambitions, stopping at nothing to have her under their influence.

Thankfully, neither of them will have to deal with these obstacles alone.

However, something even more dangerous is stirring. Dark matters are afoot.

The series begins with Foal of the Forest.
Now with a TV Tropes page.

This story is a sequel to The Promise of a New Day

Story three of Savage Skies:
All sorts of things are brewing in the pegasus city of Cloudsdale, which is a problem for Ponyville as the one thing that isn't is a rainstorm. As the drought continues to drag on, Rainbow Dash must confront her hometown and its history, as well as her own history. But she won't do it alone, which is good, because she'll need all the help she can get.

Series starts with Foal of the Forest.
Now with a TV Tropes page.

First of the Savage Skies series.
After running afoul of timberwolves in the Everfree Forest, Fluttershy is saved by a mysterious young colt with a most unusual and disturbing feature. Realizing that he is alone, without anyone else to care for him, Fluttershy realizes that she must try to bring this lonely foal out of the forest and give him a life of love and friendship. The problem is that this colt's...unique qualities have made him more than a few enemies, including some who are closer to home than Fluttershy realizes.

Now with a sequel: The Promise of a New Day.
Now with a TV Tropes page.

[2nd Person Perspective]

"Look out for number one."

That was the way of life back in Clopton. A city where survival was a daily battle.

Having made a few too many enemies, you move to Ponyville with only a bag of bits, the tools of your trade, and a couple jackets to cover the scars you've accumulated in the past. You don't trust anypony as far as you can throw them, but can you mesh well enough into the little country town to support yourself?

It'd probably be easier without that colorful maned pegasus bothering you.

Isolated from her friends and taken prisoner in the middle of a war, Twilight must deal with the very real dangers of being percieved as an enemy as well as the nightmares of her arrival on 'Earth'. Can she overcome her own fears and the fears of her captors? Will the wayward unicorn's assistance be a boon or a curse to the 'humans?' Most importantly, will she ever find her way home?

"In short, it's a story of friendship and plasma rifles, with the emphasis on the friendship. The characters are well written, the XCOM setting is fleshed out very well, and the story is compelling. If you love XCOM, you'll love the story, but even if you've never heard of it, it's more than worth giving the first 3 chapters a read.

There's excellent action later on, but the real strength lies in the collision between the friendly and naive world of Twilight Sparkle and the desperate world of humans fighting a losing war for survival and willing to do anything to turn the tide."

--Arzoo

(XCOM/FiM crossover)
(Cover art commissioned by a friend and created by the magnificent FoxInShadow!)
(Original cover art by the amazing Carnelian can be viewed here!)
(Gore tag for blood and some violence)
(Many thanks to the studius OminousTen, Arzoo, xXFluttershyForeverXx and finally Setokaiva for giving my rambles a once-over)
(Now with it's own TV Tropes page! Get to tropin' folks!)