In the first week of September 170,000 men enrolled, 30,000 in a single day.

Eleven months later, two million had enlisted.

Ten months later, five million and forty-one thousand had voluntarily enrolled in the Army and Navy.
In 1914 Britain had in her Royal Naval Air Service 64 aeroplanes and 800 airmen.

In 1917 she had many thousand aeroplanes and 42,000 airmen.

In her Royal Flying Corps she had in 1914, 66 planes and 100 men; in 1917, several thousand planes and men by tens of thousands.