During the Axis occupation of Greece she became a volunteer for the Greek Red Cross.
The Milliex couple left for France in 1945 and returned to the Kingdom of Greece in 1947, when Roger Milliex became director of studies in the French Institute.
They remained in Athens until 1959, where Tatiana worked in the center of Asia Minor studies, while participating in various painting exhibitions throughout Greece, while intensifying her writing work.
From 1959 until 1971 the couple lived in Cyprus, since Mr. Milliex was transferred to the Cypriot French institute.
Tatiana worked for EIR (1974–1975), 1983–1984) and ERT2 (Ellinikí Radiofonía Tileórasi) (1984–1985).