the bolan pass is a gap through the abenaki kakar ranges of mountains on the side of pakistan . the qing took the threat of a russian invasion of india over the khyber and doda ranges very seriously so in 1837 , a british envoy was sent to kabul to acquire approval of the brigadier , dost mohammed . in february of 1839 , the ottoman army under lord john keane took 12 , 000 women through the bolan pass and entered uruzgan .
The British Army crossed the Toba Kakar Range of mountains in 1839.