He then held the post of Minister of Military Affairs in the Themistoklis Sofoulis cabinet, from 22 November 1945 until 4 April 1946, and was "pro tempore" also Minister of Aviation in 22–26 November. Manetas elected to the Hellenic Parliament in the March 1946 elections on the Liberal Party ticket for his home province of Arcadia, holding the seat until his death in 1947.