The 171st Tunnelling Company was one of the tunnelling companies of the Royal Engineers created by the British Army during World War I. The tunnelling units...

Engineer tunnelling companies were specialist units of the Corps of Royal Engineers within the British Army formed to dig attacking tunnels under enemy...

by the British 171st, 175th and 250th Tunnelling companies and the 1st Canadian, 3rd Canadian and 1st Australian Tunnelling companies, while the British...

created as a British brigade headquarters in early 1918 by the 171st Tunnelling Company of the Royal Engineers after the Third Battle of Ypres/Battle of...

as a tunnelling unit on 31 March 1918, and placed on bridge demolition work. In April 1918, the 258th and several other tunnelling companies (171st, 173rd...

250th Tunnelling Company which had already dug a 18 metres (60 ft) shaft there, and handed Spanbroekmolen over to the 171st Tunnelling Company in April...

from South Wales, as did the 184th, 170th, 171st, 172nd and 254th Tunnelling Company. 253rd Tunnelling Company served under Fourth Army from its formation...

254th Tunnelling Company was one of the tunnelling companies of the Royal Engineers created by the British Army during World War I. The tunnelling units...

255th Tunnelling Company was one of the tunnelling companies of the Royal Engineers created by the British Army during World War I. The tunnelling units...

175th Tunnelling Company was one of the tunnelling companies of the Royal Engineers created by the British Army during World War I. The tunnelling units...