Since we're just getting started, we haven't managed to liberate any countries yet. We have started with Texas, our founding member. Then we hope to liberate America which obviously needs it really badly.
As of September 2, 2005, we have officially created the New Republic of Texas and resurrected the Historical Republic of Texas, and these two together founded the United Republic of Texas which includes them both as founding members. We have seated Congress and are working on the new Constitution at present. See Texas below for more information.