<page_title> Deadliest single days of World War I </page_title> <section_title> Western Front </section_title> <table> <cell> German Empire <col_header> Country </col_header> </cell> <cell> Kaiserschlacht <col_header> Battle, siege, or offensive </col_header> </cell> <cell> March 21, 1918 <col_header> Date </col_header> </cell> <cell> 10,851 <col_header> Number killed on this day </col_header> </cell> </table>
On March 21, 1918, Kaiserschlacht of the German Empire had 10,851 kills.