In 1917 Allied troops from this North American country stormed up Vimy Ridge in a legendary charge
similar problems observed in ... [PAR] The Russian Empire collapsed in March 1917, and Russia left the war after the ... 
3.7.9.1 Allied superiority and the stab-in-the-back legend, November 1918 ..... 
Canadian troops advancing behind a British Mark II tank at the Battle of Vimy 
Ridge.