The Army was constructed from the ashes of the feudal army. After the disasterous Jieshi war, the feudal commanders were stripped of their authority. However, the Army dates back to almost 1000 BC. The past decade has seen numerous changes, from a reorientation away from fighting in the mountains of Shepistan, a merger with the army of Tian Jiao Province, a split of the Marine Corps into its own separate branch, the drawdown of the western border in America, and the preparation for battle against an enemy to the north of Tian Jiao Province. In the midst of this, it has also undergo a significant modernization program, updating the relatively ancient tank force.