The Lunar Republic
Celestia must be taken down. It is time for a change. Follow the stars, follow the rebellion! The night is coming, will you follow it?

The Solar Empire
Luna's night is far too dark a future. Follow your leader of one thousand years, follow your sun! A brighter day is coming, will you follow it?

The Peace Corps
We were founded on peace and friendship, and our greatest magic is that of harmony. Don't lose the magic, don't lose your friends, don't lose your country. A peaceful day can come if you make it.

Editing, Pre-reading, Genius-ing, and Helping Keep Author's sanity by:NorrisThePony