The grim reality of the First World War has been remembered in a series of 100 colourised images to commemorate the 100th anniversary of the end of the conflict.

The incredible images include one of Royal Garrison Artillery gunners pushing a light railway truck filled with shells in 1917 and a British soldier helping a wounded German prisoner walk along a railway track in 1916.

In another poignant photograph, British officers standing outside the mouth of a German trench in Messines, Belgium, in 1917 after capturing it.

Other striking pictures show King George V sitting next to an army commander in Thiepval, France on the site where Thiepval Chateau once stood.

A soldier receives a haircut from an Alpine barber on the Albanian front and a group of Irish soldiers recuperating with nurses in 1917 in another fascinating insight into the realities of war a hundred years ago.

The original black and white photographs were painstakingly colourised by Tom Marshall of PhotograFix to mark the 100th anniversary of World War One ending, some of which are pictured here...