British and French cavalry fall back from Passchendale to Ypres. Trench lines beginning to link up along the front. #ww1 #ww1centenary
— WorldWar1 Day by Day (@WW1TheGreatWar) October 21, 2014
from Twitter https://twitter.com/WW1TheGreatWar
October 21, 2014 at 06:55PM
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