The Actions of the Bluff were local operations in 1916 carried out in Flanders during the First World War by the German 4th Army and the British Second Army. The Bluff is a mound near St Eloi, south-east of Ypres in Belgium, created from a spoil heap during the digging of the Ypres–Comines Canal before the war. From 14 to 15 February and on 2 March 1916, the Germans and the British fought for control of the Bluff, the Germans capturing the mound and defeating counter-attacks only for the British to recapture it and a stretch of German front line, after pausing to prepare a set-piece attack.