Arrange the sentences A, B, C and D from a logical sequence between sentences 1 and 6.(1) The  necessity for regional integration in South Asia is underlined by the very history of the last 45 years since the liquidation of the British Empire in this part of the world. (A) After the partition of the Indian Subcontinent, Pakistan was formed in that very area which the imperial powers had always marked out as the potential base for operations against the Russian power in Central Asia. (B) Because of the disunity and ill-will among the South  Asian  neighbours, particular India and...