I’m sorry for my tardiness in reminding you of this but, in truth, December has rather taken me by surprise this year. Anyway, I heartily recommend Great War Huts seasonal Hutvent Calendar. These are short but fascinating films on various aspects of the First World War, released daily on the Great War Huts YouTube channel. Although it’s already the 16th, you can easily catch-up with them and, unlike chocolate-filled advent calendars, they are non-fattening!
Salonika Campaign Society, 1915-1918 
I’m pleased to say there is a Salonika item this year, relating to 1/Suffolk – but I’m not going to tell you which one. You’ll just have to watch them all!