<P> The force was commanded by Field Marshal Sir John French until December 1915 , when he was replaced by General Sir Douglas Haig . The BEF 's Chief of Staff on mobilisation was General Archibald Murray . He was replaced in January 1915 by General William Robertson . Lieutenant - General Launcelot Kiggell then served as Chief of Staff from December 1915 to January 1917 when he was succeeded by Lieutenant - General Herbert Lawrence . The two initial Army Corps were commanded by Douglas Haig ( I Corps ) and Horace Smith - Dorrien ( II Corps ) . </P>
<P> The force was commanded by Field Marshal Sir John French until December 1915 , when he was replaced by General Sir Douglas Haig . The BEF 's Chief of Staff on mobilisation was General Archibald Murray . He was replaced in January 1915 by General William Robertson . Lieutenant - General Launcelot Kiggell then served as Chief of Staff from December 1915 to January 1917 when he was succeeded by Lieutenant - General Herbert Lawrence . The two initial Army Corps were commanded by Douglas Haig ( I Corps ) and Horace Smith - Dorrien ( II Corps ) . </P>
who commanded the british expeditionary force in world war one
who commanded the british expeditionary force in world war one
Field Marshal Sir John French until December 1915 , when he was replaced by General Sir Douglas Haig .
Field Marshal Sir John French until December 1915 , when he was replaced by General Sir Douglas Haig .