The Draconis Campaign

With several colony worlds, the Solar Commonwealth is ready for the next chapter in its expansion into the galaxy - an alliance with the Union of Tyndal. Joining with their interstellar cousins, humanity is set to cement its place in the Galactic Concorde.
But there are still more threats in the galaxy than the humans recognize, and some have no love for the Concorde. Almost from the outset, the alliance is put to the test.