I did not like the 1970s version,original story is unbalanced.
This might be a well made,well acted production but my issues are with the source material,the famous book of the same title.
Of course the loss of so many young men in World War 1 was tragic but most people coped better than Vera Brittan and did not become pacifist.
I am glad that everyone in Britain did not become a pacifist 1919-1939 because Hitler would have won.
We should all work for peace but sometimes you have to fight or the bad guys take over.