Answer:
One reason is to simply expand their religion. Another would be to acquire more resources like exotic spices and such. Another being to dominate.
the answer you are looking for would be Farmland... hope this helps!!
In the story of Lorax, the trees or also called the truffala
has provided things to people such as providing the material called thneed. In
harvesting this tree, they use a tool in order for it to be harvested. The tool
they used is the Super Axe Hacker, this will help in harvesting the tree in
just one stroke.
He led the colonial forces to victory over the British and became a national hero.