This Lakhmid kingdom was more or less dependent, during the four centuries of its existence, on the Sassanian empire, to which it formed a sort of buffer state towards Arabia.
This part of Baluchistan thus presents a buffer system of independent tribes between the British frontier and Afghanistan.
Italy in her reply (Dec. io) insisted on continuity (the real if unavowed motive of which was to control the port of Fiume in the interests of Trieste and Venice, and so retain some hold over Yugoslavia's commercial development), demanded the island of Cherso and the neutralization of the Yugoslav coast, and suggested a triple division - the corpus separatum of Fiume to Italy, the port to the League of Nations, and the rest of the buffer state to Yugoslavia.
Tardieu suggested a compromise by which the port and district of Fiume with most of eastern Istria and a total population of over 200,000 (mainly Yugosla y s) would form a small buffer state between Italy and Yugoslavia, under the guarantee of the League of Nations.
President Wilson adhered to his own scheme, but made it clear that he would not oppose any direct agreement, whatever might be its terms: while the Yugosla y s, though accepting the idea of a buffer state, insisted upon their enjoying at Fiume a status analogous to that of Poland at Danzig, and added the impossible condition of a plebiscite after three years.
It is probable that the isolation of Tibet was inspired originally by the Chinese, with the idea of creating a buffer state against European aggression from this direction.
When the Turks declared war in 1768 in order to support Poland, which they looked upon as a necessary buffer state, she retaliated by the great Greek scheme.
When, in the spring of 1769, the first serious campaign was opened by a simultaneous attack by three Russian armies on the principalities, the Crimea and the buffer state of Kabardia, the Turks, in spite of ample warning, were unprepared.
Siam thus has its independence guaranteed by the two European powers who alone have interests in Indo-China, England on the west and France on the east, and has therefore a considerable political interest similar to that of Afghanistan, which forms a buffer state between the Russian and British possessions on the north of India.
Maybe it provided a buffer zone to protect the mind.