Shots of German submarine base at Zeebrugge - scene of daring raid by British during WW1.
Footage of soldiers in a trench in the Argonne, loading guns and ducking for cover.
British soldiers in trench warfare, including some genuine footage from the Battle of the Somme.
Shots of soldiers in trenches during World War One.
French troops in trench and German prisoners being rounded up on Western Front.
German troops in action at the beginning of the Battle of Verdun 1916. France.
German prisoners surrender on the Somme front.