The First World War was fought on a vast scale and raised unprecedented challenges for the leaders of the combatant nations.

The political leaders were responsible for the decision to go to war, and for deciding what war aims to pursue. The horrific casualties sustained early in the war meant that none of them could consider accepting a peace without victory. They were forced to oversee ever-increasing social and industrial mobilisation to support the war, and to mortgage the financial future of their countries to pay for it.

In Britain and France democratic control was maintained over the war. In Britain, in contrast to his predecessor Herbert Henry Asquith, Prime Minister David Lloyd George directed  Britain’s war effort through a relatively small War Cabinet. He also drafted in experts from the world of commerce and industry when necessary. Meanwhile in the Central Powers the Army increasingly dominated, extending its powers into the civil domain.

Photographs

The British Government in the First World War

Group photograph of the Imperial War Cabinet members taken in the garden of No. 10 Downing Street, 1917.
© IWM (Q 27968A)

In contrast to his predecessor as Prime Minister, Herbert Henry Asquith, David Lloyd George directed Britain’s war effort through a relatively small War Cabinet. He also drafted in experts from the world of commerce and industry when necessary.

Military leaders were faced with the problem of overcoming the power of modern weaponry, which drove their armies to seek the shelter of entrenchments. By 1918 they had developed suitable tactics and were plentifully equipped. Nevertheless, the nature of industrial warfare meant that, whether in attack or defence, victory or defeat, they had to justify a heavy loss of life.

Related content

A group of 'Leeds Pals' at their training camp in the Yorkshire Dales shortly after enlisting in September 1914.
First World War

From Civilian To First World War Soldier In 8 Steps

After the outbreak of war in August 1914, Britain recruited a huge volunteer citizens' army. In just eight weeks, over three-quarters of a million men in Britain had joined up. Every volunteer had to undergo a series of medical and fitness tests before being accepted as a soldier. 

German infantry crossing the Place Charles Rogier in Brussels as civilians look on following the invasion of Belgium, August 1914.
IWM (Q 88431)
First World War

How The World Went To War In 1914

On 28 June 1914, Archduke Franz Ferdinand, the heir to the Austro-Hungarian throne, and his wife were assassinated by a Serbian-backed terrorist. 

Sommerschau über Europa 1915 [Summer Show over Europe 1915]
IWM (Art.IWM PST 6966)
First World War

5 Things You Need To Know About The First World War

Over 30 nations declared war between 1914 and 1918. Over 65 million men volunteered or were conscripted to fight in mass citizen armies and an estimated 16 million soldiers and civilians were left dead and countless others physically and psychologically wounded.