How do you evaluate Spielberg's "War Horse"?

Spielberg made this movie, which reflects the cruelty of war, but also reflects an indomitable spirit in this extremely difficult situation. This movie has a strong visual impact and shocking scenes. Like his previous movies, the details are handled very well. However, the grasp of the plot is not coherent enough, and the main line of the story is not outstanding for most movie fans, and the audience's psychology failed to produce a very prominent and strong response.