Last month , Russian President Dmitry Medvedev threatened to withdraw from the START treaty on nuclear weapons reductions and deploy ballistic missiles in its exclave of Kaliningrad on its border with Europe if NATO moved ahead with the plans for missile defense . NEW : Clinton and ` ` it 's Iran and others who are threatening to develop missile technology '' ` ` We believe our defenses would be more effective if we cooperate , '' NATO ' says . Missile defense was the agenda at a meeting of the NATO - Russia council . NATO has asked Russia to participate in the system , but negotiations have been at an end .
NEW : Clinton and ` ` it 's Iran and others who are threatening to develop missile technology '' ` ` We believe our defenses would be more effective if we cooperate , '' NATO ' says . Missile defense was the agenda at a meeting of the NATO - Russia council . NATO has asked Russia to participate in the system , but negotiations have been at an end .