German soldiers surrendering, French troops relaxing, witty signs in frontline camps and cemeteries full of recent graves. These are just some of the fascinating scenes captured in a cache of newly-discovered, never-before-seen photos of the First World War.

German soldiers (rear) offer to surrender to French troops, seen from a listening post in a trench at Massiges, northeastern France REUTERS/Collection Odette Carrez

A Viscount in the Armoured Cavalry Branch of the French Army left behind a collection of hundreds of glass plates that have never before been published. The images, by an unknown photographer, show the daily life of soldiers in the trenches.

The photos, most of which were taken on the Champagne front in 1915-16, show the full horror of war, with an officer captured standing mournfully near a cemetery full of newly-dug graves.

The collection also features two very different British commanders: Lord Kitchener, a popular hero who played a key role in enrolling troops at the start of the war, and Field Marshal Douglas Haig, a widely despised and ridiculed figure who earned the epithet 'the Butcher of the Somme' for his role in the disastrous battle of 1916.

IBTimes UK is publishing the photos to mark the hundredth anniversary of the start of the First World War.