The Woods Are Still Green (2014)

A story about a group of Austria-Hungarian soldiers in the 1st World War. They hold an artillery post in the mountains on the southern front to Italy. The group is cut off from their own troops and under heavy artillery fire from the Italian. When the post receives a fatal direct hit from a shell, killing the comrades, private Jacob Lindner and the seriously injured captain Jan Kopetzky are the only survivors of the post. Jakob has to suffer the madness of this hellish war in all its human atrocities. Without care, help from the command, food and water, to survive becomes an existential challenge. The young soldier tries desperately with humanity and dignity to save his and the injured captains life.

Unfortunately the movie The Woods Are Still Green is not yet available on HBO Max.