If you are looking for the subtitle file itself for your Blu-ray rip:
The event marked the end of the long-standing Greek presence in Asia Minor and is a defining moment in modern Greek history and national identity. Film Details subtitle Smyrni.mou.agapimeni.2021.1080p.BluRay...
While you specifically mentioned a Blu-ray file name format ( Smyrni.mou.agapimeni.2021.1080p.BluRay... ), here is an informative summary of the film's historical context and production: Historical Background If you are looking for the subtitle file