In due course, soon after he was relieved of his command, and as a semi-dictatorial "Sanacja" regime was established, Sikorski joined the anti-Piłsudski opposition. Sikorski largely withdrew from politics, spending much of his time in Paris, France, and working with the French Ecole Superieure de Guerre (war college). Even after the death of Piłsudski in 1935, he was still marginalized, politically and militarily, by Piłsudski's successors. In February next year, together with several prominent Polish politicians (Wincenty Witos, Ignacy Paderewski, and General Józef Haller) he joined the Front Morges, an anti-Sanacja political grouping.