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?
The United States Army (USA) is the largest branch of the United States Armed Forces and performs land-based military operations.n 1941, the  Army of the United States  was founded to fight World War II. The Regular Army, Army of the United States, the National Guard, and Officer/Enlisted Reserve Corps (ORC and ERC) existed simultaneously. After World War II, the ORC and ERC were combined into the United States Army Reserve.