Benjamin Franklin and Thomas Jefferson
The correct definition of Horizontal Integration is the acquisition of a business operating at the same level of the value chain in the same industry. This is in contrast to vertical integration, where firms expand into upstream or downstream activities, which are at different stages of production.
The support trench served to house reinforcements, and supplies, for the front line troops that could be quickly transported to the front line trench. A third type of trench was commonly referred to as a reserve trench and was found dug "several hundred yards" behind the support and front line trenches.
The Sahara Desert is located in the Northern countries of Africa