Yes
Major is the higher rank.
sargent major
In the Army, yes.
Yes... and the Air Force, and in the Marines, as well.
The Army Major outranks an Army Captain. Their relative power might have more to do with their jobs and responsibilities, though.
The rank higher than a Command Sergeant Major (CSM) in the U.S. Army is the Sergeant Major of the Army (SMA). The SMA serves as the senior enlisted advisor to the Army Chief of Staff and represents the interests of enlisted soldiers at the highest levels of leadership. This position is unique and holds a distinct role compared to other command sergeant majors within the Army.
The actual tern should be senior, not powerful. The rank of Major is senior to the rank of Captain in the Army. HOWEVER, the NAVY rank of Captain is the equivalent of an Army Colonel, which is senor to that of Major.
Technically, all officers are of a higher rank than any sergeant. Sergeant Major however, is a very high enlisted rank. A sergeant major will usually only take commands from a Lieutenant Colonel or higher.
There are three ranks within the pay grade of E9 - Sergeant Major, Command Sergeant Major, and Sergeant Major of the Army. There is only one Sergeant Major of the Army.
The Battle of Baugé was fought between the English and a Franco-Scots army on March 21, 1421, at Baugé, France. It was a major defeat for the English.
The major unit of the Roman army was the legion.
Commander is a rank exclusive to the Navy and Coast Guard, whereas Major is used by the Army, Air Force, and Marine Corps. Commander is pay grade O-5, which is equivalent to a Lieutenant Colonel in the other branches. Major is pay grade O-4, and is one rank lower.