The US President's decision to unilaterally leave the ABM treaty does not undermine Russia's national security, President Vladimir Putin said "with full assurance" as he was addressing the nation in a television livecast. Unlike other nuclear countries, Russia and the USA both possess effective systems to outdo anti-missile defence. The situation moves into the foreground, alongside anti-missile defence, a legal footing to be given to available understandings for further radical, irreversible and verifiable reductions of strategic offensive arsenals. As Russia sees it, they are to be reduced to 1,500-2,000 nuclear warheads for either party. It is necessary not merely to preserve the present level of Russo-US relations but to use them for further efforts on an updated framework of strategic relations. Now that the world is facing ever new dangers, a legal vacuum is not to be tolerated in strategic stability, stressed President Putin as he strongly warned against undermining mass destruction weapon nonproliferation.