Operation Military_operation Hush was a British plan Arranging to make amphibious landings on the Belgian coast in 1917 during World War I , supported Supporting by an attack from Nieuwpoort and the Yser bridgehead , which were a legacy of the Battle of the Yser ( 1914 ) .

Operation Hush was intended to begin Process_start when the main offensive at Ypres had advanced Cause_to_make_progress to Roulers , Koekelare and Thourout , linked Connect by advances by the French and Belgian armies in between .

After several postponements , Operation Hush was cancelled Change_event_time on 14 October 1917 , as the advance during the Third Battle of Ypres did not meet Come_together the objectives required to begin Process_start the attack .