that would be useful to the other side.

这有可能会为敌方提供重要情报
The other part of it is that the film might get back home.

还因为这些影片可能会流传回国内
If families got to see it, then what would happen?

如果影片被军属看到会有什么后果呢
There's a famous story

有个非常有名的故事
of the fictional film representation of war

讲述人们用虚构的故事拍摄战争电影
which is one reason why I think it is so iconic as a descriptive element

我也因此而认为影片在描写欧洲人
in European consciousness about the past.

对过去的看法这方面十分具有代表性
In 1916, in the middle of the Battle of the Somme--

索姆河战役于1916年7月1日打响
which was a six-month quagmire started by the British army

直到同年十一月结束
on the 1st of July 1916 and ended roughly November 1916,

其间英军陷入了长达六个月的战争泥沼
for no gain whatsoever and a million casualties--

不但毫无战果而且死伤百万
in the middle of it, a part of the British propaganda office,

战争中期英国对外宣传办公室