- Day 515 of the war
- Robert Henry Caldwell enlists. Robert is commemorated on the Centenary of WWI in Orange Honour Roll; he would die of disease in England on 1 January 1918.
- The first military conscription bill in British history is introduced
- Austro-Hungarian forces launch a series of attacks Montenegro, an ally of Serbia. The attacks last until 17 January, when Montenegro surrenders. Montenegrin Campaign
5 January 1916
