To prevent violence and damaged to British government.
Explanation:
The British troops make an immediate move to prevent the followers of al-mahdi in order to prevent civil war in the country as well as protect the territory where they live. The British know that these followers of al-mahdi provide damaged to the British government and to its people in order to take revenge from the British government which they done to the al-mahdi.
the forbrain forms the largest part of the brain because it contains the cerebrum and other brain vesicles.if it sustains damage ,alot of brain activities would be in trouble since it is the largest part.