The phrase you referred to is the title of a song by the Australian band Cold Chisel called ["When the War Is Over"](javascript:void(0)). It is from their 1982 album Circus Animals and was written by their drummer Steve Prestwich. The song became one of Cold Chisel's most popular tracks and has been covered by several other artists. Its lyrical themes focus on the aftermath and emotions following a war ["When the War Is Over"](javascript:void(0)).