The Pakistani Frontier Corps has been heavily infiltrated and influenced by Taliban militants, sometimes joining in attacks on coalition forces, according to classified US 'after-action' reports compiled following clashes on the border.According to those familiar with the material, regarded as deeply sensitive by the Pentagon in view of America's fragile relationship with Pakistan, there are 'box loads' of such reports at US bases along the length of the Pakistan-Afghan border. Details of the level of infiltration emerged yesterday on a day when five more US-led soldiers were killed in southern Afghanistan. Four of the soldiers died in a bomb and gunfire attack outside the southern city of Kandahar.
Nato officials have reported a dramatic increase in cross-border incidents compared with the same period last year. The US documents describe the direct involvement of Frontier Corps troops in attacks on the Afghan National Army and coalition forces, and also detail attacks launched so close to Frontier Corps outposts that Pakistani co-operation with the Taliban is assumed.
'The reality,' said a source familiar with the situation on the ground, 'is that there are units so opposed to what the coalition is doing and so friendly to the other side that when the opportunity comes up they will fire on Afghan and coalition troops. And this is not random. It can be exceptionally well co-ordinated.'
Another source - who has seen the reporting - described an attack last year where two Frontier Corps outposts appear to have been directly involved in firing on Afghan forces before a militant attack.
Frontier Corps personnel have in the past been implicated in the past in murdering US and Afghan officers. In the most high-profile case, a Frontier Corps member 'assassinated' Major Larry J Bauguess during a border mediation meeting. In another incident, an Afghan officer was killed. Since then the problem appears to have worsened as the Taliban renew their insurgency on the Afghan side of the border.
'The United States and Nato have substantial information on this problem,' said an American official. 'It's taking place at a variety of places along the border with the Frontier Corps giving direct and indirect assistance. I'm not saying it is everyone. There are some parts that have been quite helpful... but if you have seen the after-action reports of their involvement in attacks along the Afghan border you would appreciate the problem.'
James Appathurai, a Nato spokesman, said: 'The real concern is that the extremists in Pakistan are getting safe havens to rest, recuperate and retool in Pakistan and come across the border. The concerns have been conveyed to the Pakistan authorities.'
Seth Jones, author of the Rand report, which found evidence of collaboration, said the issue had been troubling the US even before the invasion of Afghanistan: 'If you go back a decade to the Clinton administration when the US targeted militant camps, members of the Pakistani intelligence services were killed along with militants.'
The allegation that senior Pakistani officials continue to offer lukewarm assistance to the coalition while offering help to the Taliban is also reiterated in Descent into Chaos, a new book by the veteran Pakistani author Ahmed Rashid.
Relations between the US and Pakistan were strained this month when 11 members of the Frontier Corps were killed when the US allegedly bombed their outpost near the border town of Gora Prai during a gun battle with militants on the border. Pakistani sources have questioned why the troops were hiding in a bunker in the midst of the battle and why they were 'unaware' of an hour-long firefight going on so close by.
The issue of the Taliban's ability to cross and recross the border with Pakistan into that country's Federally Administered Tribal Areas is becoming one of the most contentious issues of the war, with many - including Afghan President Hamid Karzai - insisting that his country is involved in a 'regional conflict' and threatening to send troops across the border.
The death of the five soldiers yesterday came as the Taliban stepped up their offensive. It happened a day after two other US-led soldiers died in separate incidents, including a suicide bombing.
