It is a good change to see a war movie which depicts an aspect of the war which is rarely talked or heard about. Rather than show full-blown action sequences with gung-ho soldiers ready to give it to the enemy, we see a side of the war that shows that it is not only humans that face the prospect of sacrificing their lives for a particular cause.
Before this film I had no idea that dogs played such a large role in what was the longest war to have been fought in the 20th century. Of the 4,500 German shepherds that travelled to Vietnam only 1 in 10 survived to return home. A fact which is very duanting I agree.
The delivery of the story was very poor however. As much as the director tried to be original in depicting how he would have seen the war we see many stereotypes brought out in a very cheap sense with your "hard-core" group of soldiers which found it hard to accept Rain's help early in the film which ended up with the "oh I owe my life to that dog" type of relationship.
The production company could have also made a bigger effort in using actual weapons and equipment that were actually used in the time. The rifles used by the soldiers for example was the "M16A2" (first issued to American troops in 1985)is actually an upgraded version of the original "M16A1" used during the Vietnam war. The helicopters used during the Vietnam war were of course the Bell UH-1 helicopter, not the Bell 206- B3 as shown in the movie because it was designed primarily for civilian use not military.
But I guess the movie could have been worst had they not salvaged it by adding that typical "war-time romance" into the story to give the movie some sort of lift (not much of it though).
Overall a 2/5 stars from me.