 Roughly 100 @,@ 000 British and German troops were involved in the unofficial <unk> of hostility along the Western Front . The first truce started on Christmas Eve 1914 , when German troops decorated the area around their trenches in the region of Ypres , Belgium and particularly in Saint @-@ Yvon ( called Saint @-@ Yves , in Plugstreet / Ploegsteert – Comines @-@ Warneton ) , where Capt. Bruce <unk> described the truce . 
