1) Adjective for the 1950s 2) After peace is declared 3) Antebellum antonym 4) Like many apartment buildings 5) Like Reconstruction 6) Like the period after 1945 7) Occurring after 1945 8) Occurring in 1946 9) Opposite of antebellum 10) Period after surrender 11) Period after WWII 12) The NATO era Found on https://www.crosswordclues.com/clue/postwar