0923 Hours
Twenty-seven miles north-east of the Firebase

High above the forest that dominated the center of the known area of Equestria, and far away from the battle winding down inside of the city, a single RQ-170C Sentinal flew towards a point marked in its navigation computer. At an altitude of 32,000 feet, it would have normally had to activate its thermal imaging equipment to see effectively, but a remarkably clear day meant that it had total vision in all directions.

Thirty miles away, in the command building for the Firebase, a technician was controlling the large drone, flying it towards its target.

The point on the radar-map, marked 'Capitol', was 12,520 feet up the side of a mountain.

"Almost to release point." The technician said. "Range to target is six miles."

The small bay doors on the RQ-170C opened, revealing four small AGM-114 Hellfire missiles.

"Target locked: Outside of the castle is in view."

Beyond a small city stood a massive castle, leaning up against - and supported in part by - the cliff next to it. Dozens of towers were dotted around the top, with the main body of the castle being almost two hundred feet tall.

"Launching."

Four small Hellfire missiles dropped from the Sentinal, their rocket engines igniting moments later. They streaks forward, aiming for four separate parts of the castle. The first one flew forward and hit the support connecting a leaning tower to the cliff, blowing it apart. The second and third crashed into the wall by the area believed to be the throne room, hitting directly between several large stained-glass windows. The final missile flew down and hit at the base of the weakened tower, causing it to crumple downwards and sideways, directly towards the large 'throne room'. It crashed in on it, crushing most of the middle beneath a rain of stone.

"All targets hit, I think we delivered the message." The technician noted.

"I think so, too." The officer standing over him said. "Get that drone back here, it's of no use to us flying around over there."

"Yes sir." The technician replied, working the controls.

Inside of Canterlot castle, in the middle of the throne room, a golden glow surrounded a single large bolder, pushing it out of the way. Princess Celestia coughed as dust circled through the air, threatening to block out her vision entirely.

She thanked whatever luck she had that nopony had been in the Throne Room aside from her and her guards, both of whom were unharmed. The only thought going through her mind now was how to deal with the aftermath.

"Accursed creatures." Celestia mumbled to herself, picking up another bolder in her magic. "First they attack my sister, and now they strike at my castle. I will not let their evil actions sway me. All of them will fall in the end, for Harmony always triumphs."

"Do not worry, Princess Celestia." One of the guards behind her said as she quickly cleared a path. "We shall avenge the loss of the Throne Room on these evil monsters. None of them will escape our justice."

"I can only hope that I do not lose any more ponies to those abominations..." Celestia said, finally clearing a decent path through the rubble towards the doors of the throne room, where her guards were already pouring in. Celestia ignored their questions and walked forward, heading for her room.

By her mother's name, she would make sure that these monsters that were killing her ponies would pay.

Author's Note

Just as a note, the attack was meant as a major wake-up call to the ponies, a message of sorts. This is also to put forward Celestia's point of view, since I got tired of stating it in chat.