No tactical or strategic gain was made on the Somme front that was worth the cost in lives. Even had the British and French achieved their breakthrough on the Somme, the Germans had plenty of room to manoeuvre and, unlike the French at Verdun, no national interest in staying where they were. During the winter of 1916-17 the Germans simply withdrew to the Hindenburg Line, east of the Somme battlefield, and it all had to be done again.