Examples from the Web for observation post
Commandant L—— introduced me to the Lieutenant, and then asked whether his Captain had reached the observation-post.
He had fortified it with dug-outs and made considerable use of it both as an observation-post and as a position for snipers.The History of the 51st (Highland) Division 1914-1918|Frederick William Bewsher
His gas-mask had been blown to atoms with Observation-Post Fourteen.Morale|Murray Leinster
This morning I watched the fires of this battle from an observation-post on the edge of the salient.From Bapaume to Passchendaele, 1917|Philip Gibbs
Go through the Rue d'Estaires, in which there is a large and very high armoured shelter that served as an observation-post.Ypres and the Battles of Ypres|Unknown