I have an idea; why don't we colonise Alpha Centauri. Say that sometime after the alien war with the martians that we salvaged tech from them including faster then light speed. The Titan Alliance salavaged it and together with the Fanon nations they agree to begin the colonisation of Alpha Centauri. They decide to colonise the solar system around Proxima Centauri. The journey takes four months (if it was light speed it take four years) and Earth's United Nations sets the first colony which they named Centauri. Fanon colonise a nearby planet which they called Proxima Centairi after the star they orbit.
What ya say?