Ashfaq Kayani Pakistan's army chief has told the US that it will have to consider"10 times" before taking any one-sided action in North Waziristan.
He said that the US should concentrate on alleviating Afghanistan instead of pushing Pakistan to assault insurgent groups in the key border area.
Washington has for several years advocated Islamabad to make a treaty with insurgents in the region, particularly the Haqqani network.
It has been accused for a numbers of latest assaults in Afghanistan.
"If someone proved to me that all troubles will be resolved by taking action in North Waziristan, I'd do it tomorrow," a parliamentarian who focused an updating given by Gen Kayani quoted him as saying.
"If we required to take action, we will do it on our timetable and according to our limits."
Gen Kayani told the closed-door parliamentary defense committee meeting in Rawalpindi that any pulling out of US help would not affect Pakistan's defense competences.
The Haqqani network - considered to be connected to the Taliban and al-Qaeda - is blamed of carrying out last month's 19-hour blockade of the American embassy in Kabul.
The US has accused the new attack on Kabul's US embassy on the Haqqani network.
Different reports illustrate that during the meeting Gen Kayani shielded Pakistani contacts with the groups "positive" for intelligence gathering.
The verbal and military war waged by the US against the network has strengthened in recent months and is the key reason of uneasiness between the US-led allies in Afghanistan and Pakistan.
US national security consultant Thomas E Donilon is reported to have told Gen Kayani at a confidential meeting in Saudi Arabia previous this month that Pakistan must either kill the Haqqani leadership, assist the US to kill them or persuade them to join a peaceful, democratic Afghan government.
In September outgoing Joint Chiefs of Staff Chairman Adm Mike Mullen described the Haqqanis a "veritable arm" of the Pakistani spy agency, blaming it of directly favoring the militants who had grown the attack on the US embassy.
But Pakistan has been hesitant to give in to US demand on the issue. Last month Prime Minister Yousuf Raza Gilani said that his country "will not bend over US pressure" on combating insurgency.
A senior officer in Afghanistan said on Tuesday that the allies was "very concentrated" now on the Haqqani network.
He said that the Haqqani network functions mainly in Khost, Paktia and Paktika provinces, but there has been a notable development in its actions in Wardak and Logar provinces.
Afghan and Nato authorities disagree that Pakistan's unwillingness to tackle the Haqqani network has enforced them to increase missile strikes against them in their secure haven of North Waziristan.
For months, the US has been attacking insurgents, as well as members of the Haqqani network, in Pakistan's tribal regions near the Afghan border - some in the US Congress are now calling for it to away from drone attacks.
Pakistan's military was greatly infuriated and embarrassed when US commandos killed al-Qaeda leader Osama Bin Laden in a confidential raid on Pakistani region in May.
While Pakistan has long rejected favoring the Haqqani group, it has about ten year old policy of following foreign policy goals through associations with the insurgents.
