each poster is a link to a web-site dealing with the relevant topic.

The links given should be sufficient - but if you have time you may wish to explore further  

general background

political background - and Europe 

populations - timeline

casualties - deaths - wounded - missing

weapons

the trenches 

women - their role in the war and after

posters and recruiting

Christmas 1914 - the little peace in the Great War 

the battle of the Somme

the second battle of Ypres (gas)

Verdun

Passchendaele (the third battle of Ypres)

the battle of Cambrai (tanks)

the battle of Belleau Woods (Americans)

literature