Fossil fuel is a general term for buried combustible geologic deposits of organic materials, formed from decayed plants and animals that have been converted to crude oil, coal, natural gas, or heavy oils by exposure to heat and pressure in the earth's crust over hundreds of millions of years.
Currently there are 10 Active Army Divisions. They are the 1st Armored Division, 1st Cavalry Division, 1st Infantry Division, 2nd Infantry Division, 3rd Infantry Division, 4th Infantry Division, 10th Mountain Division, 25th Infantry Division, 82nd Airborne Division, and the 101st Airborne Division. Currently there are 10 Active Army Divisions. They are the 1st Armored Division, 1st Cavalry Division, 1st Infantry Division, 2nd Infantry Division, 3rd Infantry Division, 4th Infantry Division, 10th Mountain Division, 25th Infantry Division, 82nd Airborne Division, and the 101st Airborne Division. Minor edit?
Standard NATO symbol for an infantry division. The Xs do not replace the division's number; instead, the two Xs represent a division (one would denote a brigade; three, a corps). A division is a large military unit or formation, usually consisting of between 10,000 and 20,000 soldiers. Infantry divisions during the World Wars ranged between 10,000 to 30,000 in nominal strength. In most armies, a division is composed of several regiments or brigades; in turn, several divisions typically make up a corps.