Joseph Stilwell led the defense of one of these things against Japanese capture in a battle in Yunnan province. One of these things was created by Sher Shah Suri on the plain 
Joseph Stilwell led the defense of one of these things against Japanese capture in a battle in Yunnan province. One of these things was created by Sher Shah Suri on the plain of the Ganges and was extended by the British to include Howrah. The Golden Quadrilateral is a network of these things, which were often lined with (*) caravanserais. During World War II, the "Burma" one was used by the Allies to move supplies into China. For 10 points, identify these things exemplified by the "Grand Trunk" one in India and the "Silk" one across Asia.
Joseph Stilwell led the defense of one of these things against Japanese capture in a battle in Yunnan province.
roads [or routes; or highways; due to possible ambiguity, accept mountains or mountain ranges or humps until "Sher Shah" is read and do not accept or prompt thereafter]