Pakistan voiced its concern over a defense agreement signed between the U.S. and its nuclear rival India, saying that the deal could destabilize the strategic balance in the region.
The Pakistani foreign ministry said that it was receiving details of the 10-year pact between Washington and New Delhi.
The agreement was signed on Thursday by the U.S. Defense Secretary Donald H. Rumsfeld and India's Foreign Minister Pranab Mukherjee in Washington.
It will pave the way for joint weapons production, co-operation on missile defense and the transfer of sensitive military technology.
"The induction of advanced weapons systems in the region is matter of concern for Pakistan, as it could destabilize the strategic balance in the region," Pakistan's Foreign Ministry said in a statement.
"While Pakistan is opposed to an arms race, we are committed to maintaining credible minimum deterrence in both conventional and non-conventional area."
"Pakistan will always ensure its defensive capability and would respond appropriately to rectify any imbalance," it added.
The ministry also said that Islamabad had proposed strategic restraint regime to New Delhi based on conflict resolution, nuclear and missile restraint and conventional balance.
"We are also committed to the ongoing composite dialogue process with India with an ultimate objective of achieving durable peace and stability in the region," it said.
In March, India criticized the U.S. for agreeing to sell F-16 fighter jets to Pakistan, saying the move would affect the military balance in the region.
Pakistan and India have fought three wars since gaining independence from Britain in 1947.
The South Asian neighbors launched a peace process last year to settle all disputes including the conflict in Kashmir.