The British Second and the French Sixth Armies supported the twelve Belgian Divisions in the Fifth Battle of Ypres re-taking Passchendaele and Zonnebeke in the process. By the following day Messines was captured and by the 30th September, despite the captured ground becoming another quagmire of mud, all of the high ground around Ypres had been occupied by the Allies. Meanwhile major attacks along the entire front over three days were having its desired effect, and now the British Fourth Army stood poised to break-through the Hindenburg Line at the critical Bellicourt tunnel.
Following the Twenty-Second 