The fallout from the disastrous Gallipoli campaign together with the so-called ‘Shell crisis’, when the army began to find itself short of explosive shells for its artillery, combined to produce an increasingly toxic atmosphere for the Asquith government. Ultimately, he decided that his only way forward was in a coalition government including the Conservatives. Liberals still made up a majority of the ministers, but several leading figures had to go. One of them was Winston Churchill, made the scapegoat for the failure at Gallipoli.

Britain was still not anxious to commit itself fully to the fighting on the continent. But fears about whether the French would stick it out without help on the Western Front made Britain steadily increase troop numbers there, with the results that losses mounted frighteningly in fruitless offensives.

In April 1915, it was the Germans who launched an offensive, at the Second Battle of Ypres. Which was the first time gas was used in the war. By no means the last, of course, and it became a weapon much favoured by many armies, including the British.

Overall, 1915 left the Central Powers ahead of the game, with more territory gained in Europe than lost in German colonies across the globe. Most notably, German-led forces drove the Russians back 300 miles, at huge cost to both sides. But these apparent successes only concealed the gradual swing in fortunes towards the Allies, as they geared up for total war, and increased recruitment into their armies.

Illustration: Ruins in the Belgian town of Ypres after two years of war. Public Domain.

Music: Bach Partita #2c by J Bu licensed under an Attribution-NonCommercial-No Derivatives (aka Music Sharing) 3.0 International License.