A very solemn symphonic orchestra composition (with haunting yet beautiful chord progressions) from the film,
and is set to begin at this point. Definitely worth a listen imo.
About the film The Fortress (2018):
In 1636, King Injo and his retainers seek refuge in a fortress as Qing dynasty forces from China invade Korea. The situation grows desperate as the king's advisers debate what course to take, while his people suffer and die in the fortress.