The United States says it will help Poland modernize its military as part of an agreement to deploy part of a new U.S. missile defense system in the country.

U.S. President George W. Bush said on Monday that the United States recognizes the need for Polish forces to be modernized.

"Well I think there is a commitment to a system that respects Polish sovereignty, that will ensure that the people of Poland will not be subjected to any undo security risks. That the system is necessary to deal with the realities of the threats."

Donald Tusk, Polish Prime Minister remarks on the exchange for allowing the interceptors.

"Our joint intention is to cooperate in all aspects of global security, American security, and Polish security. And an element of the security is the missile defence system."

In January 2007, the United States proposed the installing parts of its anti-missile shield in Poland and the Czech Republic, a move strongly opposed by Russia.

Russia warned that the deployment of anti-missile shield, which threatens Russia's security, could trigger a new arms race.