▁returning ▁from ▁service ▁on ▁the ▁front . ▁By ▁the ▁ 1 5 th ▁the ▁regiment ▁was ▁based ▁in ▁Chap elle ▁St ▁Ro ch ▁where ▁they ▁participated ▁in ▁the ▁minor ▁al lied ▁victory ▁of ▁the ▁Battle ▁of ▁Fest ub ert . ▁On ▁ 2 5 ▁May ▁the ▁regiment ▁moved ▁to ▁Lo os ▁where ▁they ▁helped ▁in ▁the ▁Battle ▁of ▁Lo os ▁which ▁was ▁the ▁first ▁al lied ▁battle ▁which ▁attempted ▁to ▁break ▁the ▁front - line ▁st alem ate . ▁The ▁regiment ▁later ▁took ▁part ▁in ▁the ▁A ctions ▁of ▁the ▁H oh enz oll ern ▁Red ou bt ▁which ▁would ▁be ▁a ▁British ▁defeat ▁within ▁a ▁larger ▁British ▁victory . ▁ ▁On ▁ 2 1 ▁May ▁ 1 9 1 6 , ▁the ▁amb ul ance ▁took ▁part ▁in ▁the ▁p iv otal ▁Battle ▁of ▁V im y ▁R idge ▁which ▁resulted ▁in ▁a ▁British ▁def ensive ▁victory ▁during ▁a ▁major ▁German ▁operation . ▁During ▁late ▁summer ▁of ▁ 1 9 1 6 ▁the ▁British ▁army ▁moved ▁to ▁the ▁area ▁around ▁the ▁Som me ▁where ▁they ▁cons olid ated ▁for ▁a ▁possible ▁massive ▁assault ▁on ▁the ▁German ▁lines , ▁this ▁became ▁known ▁as ▁the ▁Battle ▁of ▁the ▁Som me ▁where ▁t anks ▁were ▁used ▁for ▁the ▁first ▁time ▁during ▁combat . ▁The ▁regiment ▁also ▁saw ▁service ▁during ▁the ▁later ▁Battle ▁of ▁Fl ers – C ource lette . ▁Following ▁the ▁end ▁of ▁this ▁eng agement ▁the ▁regiment ▁moved ▁south ▁to ▁the ▁" High ▁Wood " ▁or ▁Bo is ▁des ▁Four c aux ▁where