Security: The New START Treaty

The clause in the preamble of the new Strategic Arms Reduction Treaty which some Republicans object to ...

Recognizing the existence of the interrelationship between strategic offensive arms and strategic defensive arms, that this interrelationship will become more important as strategic nuclear arms are reduced, and that current strategic defensive arms do not undermine the viability and effectiveness of the strategic offensive arms of the Parties,

For much more, see Treaty Between the United States of America and the Russian Federation on Measures for the Further Reduction and Limitation of Strategic Offensive Arms (PDF) at U.S. Department of State.