East Riding Royal Garrison Artillery
It provided coastal defence artillery along the Humber Estuary from 1908 to 1956 , manned siege batteries on the Western Front during World War I at the Somme and Ypres and played a role in the pursuit of the German army during the Hundred Days Offensive . 
<triplet> Somme <subj> Western Front <obj> part of <subj> World War I <obj> part of <triplet> Ypres <subj> Western Front <obj> part of <subj> World War I <obj> conflict <triplet> Hundred Days Offensive <subj> Western Front <obj> part of