The Khyber Pass into India

On their return from Sogdiana (see: End of Alexander’s Campaign in Central Asia), the Macedonians spent a well-deserved rest of six months at Alexandria-in-the-Caucasus (Begram) in the heart of the Kabul Valley. Here, Alexander worked hard to reshuffle and reorganize his army.

[Map is from the Encyclopaedia Britannica]

His strategic phalanx was dismantled since it no longer served its purpose after the Bactrian guerilla wars. The mounted Lancers joined the Companion Cavalry together with the skillful horsemen from Bactria and Sogdiana, to which he added 2,000 horse-archers from Spitamenes’ nomads.

On another level, the commanding posts needed to be redistributed after the execution of Philotas and Parmenion and the murder of Cleitos. Their detachments were split between Ptolemy, Hephaistion, Perdiccas, and Leonnatus. The Royal Shield Bearers were promoted to the title of Silver Shields (Argyraspids), led by Seleucos and Nearchus, under the supreme command of Neoptolemus. The Royal Squadron of Companions remained under Alexander’s own command. These Cavalry Commanders and trusted squadron leaders enabled him to divide his army more freely between different locations at any one time.

That winter of 327 BC, the entire army was on the march again, with their forces divided in two. Hephaistion and Perdiccas are sent ahead to the Indus in order to prepare the crossing of that river with half the Companions and all the mercenary cavalry. The timing is well chosen to avoid the summer heat upon arrival in India. With the other half of the troops, Alexander starts his march up the Kunar Valley into the Swat Valley in modern Pakistan.

There is little or no information about the expedition of Hephaistion and Perdiccas as they head east. It is clear that to reach the Indus River, they must cross the Hindu Kush Mountains again. The obvious route this time leads over the Khyber Pass. Even today, the main road from Kabul to Peshawar runs over the same mountain pass.

The Khyber Pass is situated at an elevation of 1070 meters and is 53 kilometers long. The passage varies between 3 and 137 meters in width, meaning that the Macedonians had to cope with the inevitable bottlenecks. On top of that, the Khyber Pass is walled in by steep cliffs towering 200-300 meters above the men’s heads.

It is not known how long it took Hephaistion and Perdiccas to get across the pass, only that they marched to Peucelaotis and hence to the Indus. Their instructions, according to Arrian, were that they had to take all the places they encountered, either by force or by agreement.

Peucelaotis, however, resisted. Hephaistion besieged the town for thirty days, after which the defenders surrendered, maybe simply because their governor, Astes, was killed. The newly appointed governor was a certain Sangaeus who had deserted Astes some time before to join Taxiles. This made the man trustworthy.

Eventually, Hephaistion and Perdiccas reached the River Indus at Ohind/Hund (near modern Attock) in Punjab. Here, they built a fleet of thirty-oared galleys and a pontoon bridge of linked boats spanning the river, which at this point is at least 400 to 500 meters wide. This operation is not to be underestimated, for although the bridge was constructed far upstream in the Punjab region, the river is fed by snow and glacial meltwater from the Karakorum, the Hindu Kush, and the Himalaya Mountains, and its annual flow is known to be two times faster than that of the Nile or three times that of the Euphrates and the Tigris combined.

Even in antiquity, historians tend to focus solely on Alexander, but his generals also excelled in their missions, which were multiplied from Sogdiana and Bactria onwards. The War of the Diadochi that broke out after Alexander’s death certainly proves – if a proof is needed – how capable each and every one of his generals was. Well, they certainly had an excellent master!

[The Black&White picture is taken by John Burke, 1879-1880]