How did industrialization in the u. s. lead to the need for the US to take over new territories

Industrialization led the United States in need of new territories because it need more resources and land to used for production. Also gaining new territories will expand the variety of resources and land that can be used in new agricultural lands or new area for factories. Also it prompt the United States to expand in order for a new avenue for imports of its growing quantity of products and reach new venue of trade and development.