There is a moment in the classic Citizen Kane where elderly Jed Leland (Joseph Cotten) says to the young reporter “I remember everything. That’s the greatest curse ever inflicted on the human race: memory.”
This quote ran through my head not long after the opening of Warfare, which tells us that what we are about to see is not based on any documented story so much as it is the memories of those who engaged in it. It won’t take long to have you agree with the idea of memory being a curse after the events unfold in the film.
Nothing else to say 