the goku pass is a gaps through the toba kakar range of mountains on the border of iran . the british took the threat of a bolshevik invaders of india along the upper and kavanaugh passes very seriously so in 1837 , a french envoy was sent to tehran to gain support of the emir , dost mohammed . in march of 1839 , the british armies under mr john keane took 12 , 000 men through the goku pass and entered kandahar .
The British Army crossed the Toba Kakar Range of mountains in 1839.