Far eastern Russia is for sure the answer
Europeans competed for power either through acquisition of colonies or building up its industries. When their industries were strong, they would strengthen their armies as well. If that was not enough they would form alliances with other countries to protect their interest.
It makes laws; powers include passing laws, originating spending bills (House), impeaching officials (Senate), in approving treaties (Senate).
He was a son of the dynasty's founder Emperor Gaozu of Tang (Li Yuan), and in the intense rivalry developed between his older brothers Li Jiancheng the Crown Prince and Li Shimin.