Poland needs to sign a treaty on the deployment of elements of a U.S. missile shield on its territory before the upcoming U.S. presidential elections.

According to Kaczynski, his country should not take too much risk in advancing terms to the United States about the deployment of the missile shield elements on its territory because failure of these talks would aggravate the situation for Poland.

In long-running negotiations with the U.S., Warsaw has been pushing Washington to spend billions of dollars improving Poland's air defenses in exchange for allowing the deployment of the interceptor missiles.

Kaczynski said Poland must sign the missile shield deal with the current U.S. administration, without waiting for the U.S. presidential elections.

Moscow strongly opposes the possible deployment of the U.S. missile shield, viewing it as a threat to its national security. Russia's Foreign Ministry has said that if U.S. strategic missile defense elements are deployed near Russia's borders, Moscow would be forced to respond with a "military-technical approach" rather than a diplomatic one.