Prime Minister Syed Yousuf Raza Gilani Tuesday said Pakistans defence capability was impregnable and should never be challenged. Addressing at the successful launch of Medium Range Ballistic Missile Hatf V (Ghauri) that can carry both conventional and nuclear warheads over a distance of 1300 Kms, Gilani said Pakistans nuclear weapons were safe, fully secure and under a multi layered command and control system. He said the launch also sends the right signals internationally that Pakistans defence capability is impregnable. The test amply demonstrates the credibility of minimum deterrence strategy, which is the cornerstone of our security policy and ensures peace in the region, Gilani said in his address at the undisclosed test site. The launch of the liquid fuel missile was conducted by the Strategic Missile Group of the Army Strategic Force Command at the end of a field training exercise aimed at testing the operational readiness. Ghauri ballistic missile is a liquid fuel missile which can carry both conventional and nuclear warheads over a distance of 1300 Kms. Prime Minister Gilani said Pakistan was a responsible nation with an extremely reliable nuclear capability. We do not harbor any aggressive designs against anyone. We wish to live in peace with honor and dignity and our nuclear capability is in-fact our deterrence against all forms of aggression, Prime Minister Gilani said.