Russia's lower house of parliament, the State Duma, ratified on Tuesday the new strategic arms reduction agreement with the United States.

Russian lawmakers approved the document, adding some provisions to the ratification document and issuing two supplementary statements to the resolution on ratification of the treaty.

The ratification document provides a legally-binding clause that links strategic offensive and strategic defensive weapons.

The first supplementary statement addresses the current state and the future of Russia's nuclear deterrent, while the second outlines the State Duma's position on the reduction and limitations of strategic offensive armaments.