post-war

Short definition from Wiktionary

Adjective

1. 1
   Pertaining to a period of time immediately following the end of a war; where there is a cessation of conflict: After the most recent or significant war in a culture's history.
2. 2
   Pertaining to a period of time immediately following the end of a war; where there is a cessation of conflict: After the end of World War II in 1945.