Getting nothing from the British, Dost began to look elsewhere.
Early in 1837 he wrote to Mohammed Shah of Persia complaining
about all his troubles and asking for Persian aid. He even made
the gesture of admitting Persian sovereignty, and stated that
if Persia did not help him he would have to turn to the British.
In return for Persian help against the Sikhs he would aid the
Shah against Herat. 5
Since there was little that Persia could do to harm the Sikhs
at this point, Dost Mohammed was apparently trying to use the
threat of turning to Persia to gain help from the British. In
the absence of a response from India however, his feelers to the
Shah took on more significance.
While extending these diplomatic feelers, Dost made another
try with his army. In April 1837 his son, Mohammed Akbar Khan,
led the army out of the Khyber pass and defeated the Sikhs. But
he failed to take any of the Sikh forts, much less Peshawar itself.
Ranjit Singh poured in reinforcements, determined to hold Peshawar
at all costs, and Akbar was forced to retreat.6
6 Dost Mohammed was
bitter over this frustrating campaign and even more determined
to succeed another time. Afghan-Sikh relations were worsening
at a most crucial time.
This conflict upset the calculations of those in charge of
the forward policy. For trade to flourish there had to be peace
between Afghans and Sikhs. The British were thus confronted with
the problem of how to make peace between the two when neither
would consider it unless he held Peshawar. At this point Auckland
sent Alexander Burnes on another mission to Kabul. This was ostensibly
a commercial mission to arrange for trade, but the Peshawar problem
was at the heart of the matter since Dost wanted British support
on that score before granting any concessions. Burnes' mission
also took on another dimension as, while he was making his way
to Kabul, the Persians were marching on Herat. 7
Herat was almost in ruins at this time. Struggles among the
Sadozais, Persian threats and invasions, tribal raids and feuds,
and cholera had reduced the population of the city from 100,000
to 40,000 since 1810. The traditional industries collapsed as
the people either died off or simply moved away. That Herat had
survived at all as an independent principality is a comment on
its enemies. Shah Mahmud died in 1829 and Kamran, his son, once
he succeeded to the title, abandoned affairs of state to his vizier,
Yar Mohammed Khan. Yar Mohammed followed a policy of strengthening
Herat while undermining Kamran and he soon had complete control
in his own hands. 8
Herat would probably have fallen to the Persians in 1833 but
for the death of Abbas Mirza. Yar Mohammed made an agreement with
Mohammed Mirza to pay tribute but as soon as the Persian army
was gone he promptly forgot all about it. 9
During the next few years Yar was busy building up his power.
In 1834 he established a measure of control over Seistan, which
had gone its own way since the death of Ahmad Shah. This was a
direct challenge to both Kandahar and Persia since they both claimed
Seistan. Yar was also successful in controlling, or at least gaining
the cooperation of the tribes surrounding Herat. He repaired the
city walls, built up his army, and conducted purges of possible
pro-Persian people in his territory. By 1837 the vizier was in
complete control, and Kamran was reduced to a mere puppet, in
fear for his own life. Kamran continued to be useful however,
as a scapegoat to blame oppression and misfortune on. 10
The strengthening of Herat was particularly threatening to Kandahar. Kohendil Khan, who ruled the city after his older brothers died in 1829, was afraid of the Sikhs and jealous of his brother, Dost Mohammed, the British were far away, so the only ones he could turn to for help against Herat were the Persians. In July 1836, Kohendil sent an ambassador to the Shah proposing that Kandahar submit to Persia, retaining only internal autonomy. Kandahar was then to help Persia against Herat in return for aid against Dost Mohammed and the Sikhs. Persia was agreeable because it could use the help against Herat, and also because Kandahar had once belonged to the Safavis and even its nominal submission would be an accomplishment.