2008年3月1日,俄罗斯设立了新的联邦主体——外贝加尔边疆区。该边疆区由赤塔州和阿加布里亚特自治区合并组成,位于欧亚大陆的中心地带、东西伯利亚东部,面积43.15万平方公里,人口约140万。区内西伯利亚大铁路和贝阿铁路横贯南北,沙皇时代铺设的通往中国的铁路成为中俄两国贸易的主要通道。 March 1, 2008, Russia set up a new federal body - outside Baikal Krai. The Territory consists of the merger of the Chita State and the Agabur Autonomous Region and is located in the heart of the Eurasian continent, east of Eastern Siberia with an area of ​​431,500 square kilometers and a population of about 1.4 million. In the area, the Siberian Railway and the Beahaya Railway run north and south, and the railway leading to China laid from the Tsar era has become the main gateway for the trade between China and Russia.