The United States has announced a new nuclear weapons policy that gives top priority to fighting terrorism and proliferation rather than responding to a nuclear attack by a foreign country.<br/><br/>The new policy provides a detailed plan to fulfill President Barack Obama's desire to reduce the role of nuclear weapons in US Defence strategy and to fight their spread to terrorist groups and rogue States. The policy promises not to use atomic weans against non-nuclear States but issues a stern warning for countries that ignored global non-proliferation rules.<br/><br/>The policy document, called the Nuclear Posture Review specifically says, the United States will reduce the role of nuclear weapons in the nation's security strategy. It lays out a plan to expand conventional capabilities to rely on existing stockpiles of nuclear weapons for deterrence against nuclear powers like Russia and China and to focus on preventing terrorists and rogue States from acquiring such weapons.