How did animals help in World War One?
Before 1914 wars had mainly been fought by cavalries (soldiers who fought on horseback).
But both sides in World War One soon realised the muddy ground, barbed wire and machine guns made it too difficult to use horses for fighting.
Instead millions of horses were used to carry people and supplies.
Many other animals also played a big part in the war as workers and mascots.
Which animals were used for work?
Many types and breeds of animals were perfectly suited to perform tasks such as guarding trenches, finding wounded soldiers and carrying messages.
Which animals were kept as pets and mascots?
There are many stories of animals who became companions to soldiers.
Not all animals were welcomed by soldiers. Rats fed on rotting food in the trenches and could have up to 900 babies every year.
Soldiers hated rats as they were smelly and spread diseases. They tried to get ride of them using clubs, bayonets and even guns.
Despite all this, rats were sometimes helpful. Many soldiers reported how rats sensed an oncoming attack and ran away, which warned them of enemy moves.
How did life change for animals and soldiers?
Animals were essential for both sides in World War One.
As well as working hard, they were important for morale. Soldiers were able to show their caring side by looking after animals.