Battle of the Hindenburg Line
...that the Allies broke through the largest German entrenched position in World War One at the Battle of the Hindenburg Line?
...that the <a href="./Allies_of_World_War_I" id="mwBR0" rel="mw:WikiLink" title="Allies of World War I">Allies</a> broke through the largest <a href="./Germany" id="mwBR4" rel="mw:WikiLink" title="Germany">German</a> <a href="./Trench_warfare" id="mwBR8" rel="mw:WikiLink" title="Trench warfare">entrenched position</a> in <a class="mw-redirect" href="./World_War_One" id="mwBSA" rel="mw:WikiLink" title="World War One">World War One</a> at the <b id="mwBSE"><a class="mw-redirect" href="./Battle_of_the_Hindenburg_Line" id="mwBSI" rel="mw:WikiLink" title="Battle of the Hindenburg Line">Battle of the Hindenburg Line</a></b>?