540 ACROSS THE PEI-SHAN TO BARKUL [Chap. XV
barbarians, kept the new road well away from Hâmi and carried it through waterless desert wastes, which at least offered protection from those dreaded nomadic foes.
China's political control over the ' Western Regions ' had completely ceàsed for over sixty years when, apparently through a weakening of Hun power, the Emperor 1\'Iing of the Later Han dynasty was enabled in A. D. 73 to start those operations which, mainly through the efforts of the famous general Pan Chao, brought the Tarim basin and the adjoining territories again under Chinese domination. This time it wàs from the side of Hâmi and the easternmost Tien-shan that the Chinese advance took place, and to this fact we owe the comparative abundance of references in the Later Han Annals to the region of Barkul and the historical events that it witnessed. These data are supplemented by an interesting Chinese inscription of A.D. 137 preserved near the town of Barkul, and its publication in M. Chavannes' masterly treatise Dix inscriptions chinoises de
l'Asie Centrale 3 has given that great scholar occasion to collect in the same place a number of
Chinese records that throw light on the role played by Barkul during the second epoch of China's
Huns of The importance of this role is brought out in a striking fashion by the account of the imperial
Mountains deliberations in A. D. 72 which preceded the start of that renewed expansion.4 We are told in it
that one of the military leaders who subsequently were entrusted with the initial enterprise urged the following view : ' It is necessary first to attack the tribes of the Po-span Cl ai (the ' White
Mountains ') and to secure 1-wu (Hàmi) . . . At I-wu there is the tribe Hu-yen 4 TIT
which is in the south of the Hsiung-nu ; to destroy it will mean to break the left (eastern) horn [of the Hsiung-nu]. After that it will be possible to attack the Hsiung-nu.' The term ' White Mountains ', as a modern Chinese text quoted by M. Chavannes points out, was used in Han times for the designation of the snowy range south of Barkul. But we can scarcely go wrong in assuming that it extended also to the immediately adjoining Karlik-tagh.
The account given of the operations actually carried out in A.D. 73 directly takes us to the eastern extremity of the Tien-shan.s We are told in the Later Han Annals that they were undertaken against the Northern Huns by three separate forces starting from Chiu-ch`iian ipq A or Su-chou, Chii. yen E.which is said to be situated near the termination of the Etsin-gol, and from Ping-ch`êng 2F #A, near Ta-t`ung fu in Shan-hsi. Leaving aside the last column, which was manifestly intended to threaten the Northern Huns in their main seats on the Altai, it is clear that the other two must have been operating towards the Karlik-tagh from the south-east and east across the Pei-shan. The force operating from the side of Su-chou reached the Tien-shan, defeated the Hu-yen king with great slaughter and put him to flight as far as the lake Pu-lei gi fri, or the lake BarkuI. The victory was gained under the leadership of Pan Chao and first brought distinction to this great commander. A garrison was then left in the town of I-wu or Hami. In the
following year, A. D. 74, Chinese forces, moving out ' from the K'un-lun At. barrier of Tun-
huang,6 attacked and defeated the barbarians of the White Mountains on the shores of the lake
P`u-lei '. The advance was continued to Chü-shih 13, i. e. the territory comprising both
Turfan and the tract about the present Guchen to the north of it, and a ' Protector of the Western Countries ' was installed there.
It is clear from the notices here summarized that the Chinese forces intended to re-establish imperial control in the ' Western Countries ' had first to defeat the Huns established in the eastern
Barkul during Later Han period.
Chinese advance upon Hâmi in A. D. 73.
Huns of Barkul defeated.
3 See Chavannes, Dix inscriptions, pp. 17 sqq.
4 Cf. ibid., p. r9, for an extract from the Tung chien hang mu.
See ibid., pp. 19 sq.
6 Regarding this head-quarters station on the Limes of Tun-huang, probably guarding the section to the NNE. of the oasis through which the present route towards Hâmi passes, cf. Serindia,-ii. p. 754 ; Chavannes, Documents, p. 26.