Sosa was a Human female minister in the Galactic Republic during the Galactic War. A special envoy to the Gree Enclave, she received a message from unit Na-TaK regarding a crisis situation on Asation. After recruiting a Republic strike team to deal with the threat on Carrick Station, Sosa directed them to Republic Major Cobus on the Valor-class cruiser Gav Daragon, who would commanding the operation.