The fighting, in which an Afghan border policeman was killed last week, has caused a sharp deterioration in relations between the important US allies, coming days before the Pakistani general election.
Pakistan is seen as vital in bringing stability to Afghanistan as most Western forces prepare to withdraw by the end of next year.
The commander of border police in Goshta district in Afghanistan's eastern Nangarhar province, Bakht Jamal Eshaaqzai, said his 250-strong forces were armed with mortars and machine guns, but that it would be difficult to match Pakistan's heavy artillery and tanks, visible on the other side of the border.
Eshaaqzai says Pakistan had 12 manned outposts in Goshta, while Afghanistan had three.
"We are under threat from their superior equipment. We urge the government to send us more as soon as possible," he told reporters and members of Kabul-based think tank Afghan Analysis Awareness, who drove from the capital to Goshta on Wednesday.
Shahzada, who only goes by one name, is one of hundreds of border police who have taken up positions over the last two days in Goshta.
"We have high morale, but what we really need is heavy artillery," he said. Sporting a long beard and resting his hand on a machine gun, he added: "We're ready to eliminate our enemies."
Pakistan artillery has destroyed several Afghan outposts over the last week in Goshta, where the remains of sandbag and concrete forts stand crumbling under the baking sun.
The cross-border clashes on Monday and last week sparked large protests across Afghanistan, drawing thousands of men to the center of the capital, Kabul, where they chanted "Death to Pakistan".
The United States and other powers involved in Afghanistan have been trying to promote cooperation between the Asian neighbors, who have a history of mistrust.
Pakistan says that both clashes were the result of unprovoked action by Afghan forces.
Afghanistan and Pakistan have had testy relations since Pakistan was formed in 1947, at the end of British colonial rule over India. Afghanistan has never officially accepted the border between them, known as the Durand Line.
Afghanistan says Pakistan is encroaching on its territory. Last week, Afghan police partially destroyed a Pakistani-built gate which is located around 750 meters (820 yards) from the Afghan police outpost.
Pakistan counters that fortifications built in recent years are for better management and are on its side of the border.
Afghan President Hamid Karzai reiterated on Thursday that his country will never accept the current border.
"If they (Pakistan) are trying to force Afghanistan to accept the Durand Line by way of these attacks, they will fail," Karzai told a gathering at the 80th anniversary of the founding of Kabul University.
COMMENTS (10)
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@Gul De Redi:But wasn't Kabul and Afghanistan also ruled by Hindus - the Hindu Shahi rule before they too were converted to Islam|?
Also, the point about Bangladesh was baffling and exceedingly naive.
@Observer: You should read history outside of what is taught in India- if you wish to see the original of the Durand Treaty, it is available in London and there is no expiry date on the said treaty.There is no lease of 100 years but an agreement in perpetuity to completely delineate the border.Check it with British sources if you don't wish to hear a south asian take on the issue.
@Mehreen Awan:
"Also kindly study history and you will come to know that Durand line is the case of agreeing to the British terms by the Afghan Head and that is in my view a defeat on its own."
You need to study history other than that taught in Pakistan studies. Yes, there was an agreement between the British and Afghan king, but the agreement was for lease for 100 years that expired in 1993. The Afghans have facts on their side and their claim is perfectly legitimate.
Besides, why shouldn't Bangladesh have a claim to Afghan territory too? After all, they were the bigger part of Pakistan for 25 years.
@Gul De Redi: I think you forget that Sind was Bab Ul Islam or the Gateway for Islam to South Asia since Muhammed Bin Qasim landed there with his army within the first century of the Holy Prophet's rule. That means before Afghanistan. Also Punjab, especially south Punjab has been Muslim for over 1000 years, long before Sikhism was even created. Ranjit Singh and Sikhism is only a few hundred years old. I think people need to remember that the borders of Northern India, Pakistan and Afghanistan have been shifted - all were part of the Mughal Empire. Before that, parts of Pakistan were with Khorasan along with Afghanistan when both were ruled by Persians. And for those from Afghanistan who complain about Pakistanis celebrated Pashtun rulers, remember that there are more Pashtun in Pakistan than Afghanistan - almost double. The Afghan police can't handle their own country, so it is a waste of time for them to try to take on Pakistani security forces.
@Mehreen Awan, I am happy that you are proud of your heritage of Ranjeet Sing as your hero but looks like you also want to make Ghoris & Ghaznavids as your heroes which is a bit of contradictory. Shahab Din was first Pashtoon Afghan king who ruled India & convert many Hindus of present day Punjab to Islam. Please do not change history with your sweeping statements.
These guys dont know what they are talking about. They cant fight talibs but want to pick up a fight with a nuclear armed military.
Poverty, Hunger, disease, Illiteracy, Corruption, religious & ethnic extremism and to top it all these Intractable and non-negotiable Border Disputes. Oh My dear South Asia - Is there no hope for you?
@BruteForce In Pakistan the only reason of naming of Missiles is the Islamic identity otherwise there is no such thing that we are in awe of their greatness and consider ourself as meek or submissive. Also Ghouri is not an Afghan king and similarly Taimur or Timur is a Turkish King : Moreover Ghaznavids have a Turkic Slave Origin rather than Afghan Origin. So We dont even know the history and give sweeping statements that we are naming our missiles on Afghans when that is not the case at all. Also why we forget Ranjit Singh whose Empire Stretched from Punjab to Khyber so how come someone remained Victorious throughout the History??? Also kindly study history and you will come to know that Durand line is the case of agreeing to the British terms by the Afghan Head and that is in my view a defeat on its own.
Pakistan names their missiles after Afghans, bases its history on the Afghan invaders, yet wants to deny Afghan its right, by talking about some line some Britisher chalked on a piece of paper.
Pakistanis never stop reminding how Britishers lost in Afghanistan(again talking about Afghanistan as if its their own country), and how great powers have lost there, yet they take on the Afghans. There is some confusing mindset at play here.