"The army in the past as well as at present has conducted successful military operations using its own resources without any external support whatsoever," military spokesman Major General Athar Abbas wrote to AFP.
"We have not received any official intimation or correspondence on the matter," Abbas wrote.
President Barack Obama's chief of staff, William Daley, confirmed in a television interview on Sunday that the United States has decided to withhold almost a third of its annual $2.7 billion security assistance to Islamabad.
Relations between the key allies in the war on Al-Qaeda drastically worsened after US commandos killed Osama bin Laden on May 2 in Pakistan, humiliating the Pakistani military and opening it to allegations of complicity or incompetence.
Abbas referred AFP to an extraordinary statement from army chief of staff General Ashfaq Kayani on June 9 recommending that US military aid be re-directed towards civilians.
The suspended aid includes about $300 million to reimburse Pakistan for some of the costs of deploying more than 100,000 soldiers along the Afghan border, according to the New York Times.
Pakistan says it has 140,000 soldiers in the northwest, more than the 99,000 American troops in Afghanistan, fighting a local Taliban insurgency.
The United States has long called on Pakistan to do more to crack down on militants, such as the Al-Qaeda-linked Haqqani network, who use its soil to attack within Afghanistan, but the army says its troops are too over-stretched.
Islamabad was a key ally of the Taliban regime in Kabul from 1996 until siding with the United States in the war against Al-Qaeda after the September 11, 2001 attacks on New York and Washington.
