Pakistan, in apparent reference to old rival India, said on Thursday any country that tried to raid its territory in the way US forces did to kill Osama bin Laden would face consequences from its military.
The raid by US special forces that killed Washington's most wanted man in the Pakistani city of Abbottabad on May 2 has exposed the Pakistani military to rare criticism at home.
The US ally is also facing growing international pressure to explain how it was possible for bin Laden to live so close to the military's main academy without the knowledge of security agencies.
Foreign Secretary Salman Bashir dismissed any suggestion the Pakistani military or its main spy agency had been involved with al-Qaeda and issued a blunt warning against any further intrusions.
"We feel that that sort of misadventure or miscalculation would result in a terrible catastrophe," he said. "There should be no doubt Pakistan has adequate capacity to ensure its own defense."
"Any other country that would ever act on the assumption that it has the might and mimic unilateralism of any sorts will find ... that it has made a basic miscalculation."
US special forces launched the Monday morning raid without the knowledge of Pakistan officials, with helicopter-borne soldiers attacking compound in Abbottabad, north of the capital, killing bin Laden and several others.
The army, which has long been seen as the most effective institution in an unstable country, has been facing growing criticism over the perceived violation of Pakistan's sovereignty. The military has not commented on the raid.
Bashir's comments, while apparently directed at India, also seemed aimed at reassuring the public the military was capable of defending the country.
While few in Pakistan supported bin Laden and his ideology, violations of sovereignty can provoke street protests and media outrage.
Bashir also reiterated the country's claim that US-Pakistan relations were stable, saying they were "moving in the right direction".
He said Pakistan and the United States should focus on strengthening their relations instead of debating "forensics" of the US raid to kill bin Laden. "Osama bin Laden is history."
Meanwhile the Pakistani air force claims the US nullified its radars during the raid, and local TV stations are broadcasting ads lauding the nation's security forces. Pakistan's military has also barred access to bin Laden's fortified complex, apparently in order to keep idolaters away.
Tsur Shezaf contributed to this report