Yes the Americans were late for both World wars but they didn't half make an impact. Some have said that this is one of the few American films about WW 1 and I feel this type of film really ought to be encouraged. In actual fact the Americans have been making excellent WW1 films since Hollywood began including 'All Quiet on the Western Front' (3 versions), 'Sergeant York' the awful 'Fly Boys (that's the one with the lion and is like a dumbed up 'Pearl Harbor)and many more. The difference is this is new and is firmly set in the retelling of the horrors of war. And the Americans fired more shells on their first day in action than during the entire Civil War, so their commitment should never be underestimated.
The plot is one which happened many times in the 'Great War' and that is a battalion goes forward believing it is supported on both flanks, alas they are not and due to a breakdown in communication they stay put and decide to battle it out despite facing a hopeless situation. It is based on actual events and it is lovely to see carrier pigeons being shown in action as they were vital, the French almost exclusively relied upon them at one point.
The acting is all excellent and the plot unfolds in real time in that there are no flash backs which are often used to build empathy with the characters and the audience (i.e. they are not just soldiers but husbands, sons etc. That could lead to the charge of non character development, but the film does not suffer from this as the humanity is clear from the start. At 92 minutes long it flew by and for followers of war films and more explicitly WW 1 this is highly recommended and almost as good as the excellent 'Beneath Hill 60'
Beneath Hill 60 [DVD] [2010] in terms of accuracy and compelling story line.