Spike and Ember's hard work together in the Gauntlet of Fire failed. Neither retrieved the blood sceptur or became Dragon Lord. Still, Equestria was safe, for a while. The new Dragon Lord later decided that Equestria was done and has unleashed all dragons under his command to rampage and destroy Equestria. Some Dragons really hate ponies, others just want their pillows. No matter what the reason, it means pony blood must be shed.
The war has been waging for several years. The Wonderbolts were easily outmatched in the air. Project Alicorn Wings was started to reclaim the skies and support the ground troops who were also hunting the Dragons. Unicorns and Earth Ponies join their Pegasus brothers in the air, using steel wings and behind guns, busting up and killing dragons whenever they come to threaten their homes.
Defending their homes means many make the ultimate sacrifice. And every engagement doesn't guarantee the death of a Dragon.
This was inspired when a fellow Living History Actor went down, flying his original P-51. He had a jump seat in the back, to carry veterans. At the end of the show, out of sight, they went down, no survivors. More information given later.
- Part 1 of Dragon War