What did men do on the front line in World War One?
Many men who went to war were able to use the skills learned from their jobs at home.
Men who worked with horses were useful recruits as the Army had thousands of horses.
Men who knew how to drive could transport supplies in buses and lorries. Or even drive a tank!
Coal miners became 'sappers', experts at tunnels and trenches.
The rifle was the soldier's main weapon. Men who knew about rifles were highly valued.
What did men do in the Army?
Most soldiers in the Army were in the infantry. They were foot soldiers, trained to march and carry all their equipment.
A soldier had to be dressed at all times with his rifle ready.
What did men do in the Navy?
In 1914 Britain had the biggest and strongest navy in the world.
The Royal Navy had hundreds of ships and more than 200,000 sailors.
What did men do in the Air Force?
Using aircraft in war was a new idea. Pilots first belonged to the Army's Royal Flying Corps or the Royal Naval Air Service.
These joined forces in 1918 to become the Royal Air Force.
How did life change for men?
Despite the many volunteers who joined the armed forces, there was still a shortage by 1916.
A law was passed forcing men to join up, called conscription.
By 1918 all men under 51 were being called up.
Lots of men did not want to go to war, but they had to go. Many had never left their home town or village before. Soon they were in the thick of battles.