<page_title> SM U-21 (Germany) </page_title> <section_title> Summary of raiding history </section_title> <table> <cell> 26 October 1916 <col_header> Date </col_header> </cell> <cell> Kingdom of Italy <col_header> Nationality </col_header> </cell> <cell> Sunk <col_header> Fate </col_header> </cell> <cell> 28 October 1916 <col_header> Date </col_header> </cell> <cell> Kingdom of Italy <col_header> Nationality </col_header> </cell> <cell> Sunk <col_header> Fate </col_header> </cell> <cell> 28 October 1916 <col_header> Date </col_header> </cell> <cell> Kingdom of Italy <col_header> Nationality </col_header> </cell> <cell> Sunk <col_header> Fate </col_header> </cell> <cell> 31 October 1916 <col_header> Date </col_header> </cell> <cell> Glenlogan <col_header> Name </col_header> </cell> <cell> 5,838 <col_header> Tonnage </col_header> </cell> <cell> Sunk <col_header> Fate </col_header> </cell> </table>
SM U21 sank three small Italian vessels between 26 and 28 October, and on 31 October U-21 sent the 5,838 grt steamship Glenlogan to the bottom.