A law degree is an academic degree conferred for studies in law. Such degrees are generally prepared for legal careers; but while their curricula may be reviewed by legal authority, they do not themselves confer a license. 
A legal license is granted (typically by examination) and exercised locally; while the law degree can have local, international, and worldwide aspects- e.g., in Britain, the Legal Practice Course is required to become a British solicitor or the Bar Professional Training Course (BPTC) to become a barrister
The Bachelor of Laws is an undergraduate degree in law (or a first professional degree in law, depending on jurisdiction) originating in England and offered in Japan and most common law jurisdictions—except the United States and Canada—as the degree which allows a person to become a lawyer. Bachelor of Laws also referred to as a B.A. in Law (B.L.) or an LL.B. (Hons) in the United Kingdom and various current or former Commonwealth countries. It is an undergraduate degree.