Russia's nuclear 'deterrent force' has been put on 'high alert' by Putin, but what does that mean?
ABCNot since the Cold War have nuclear weapons been used as a serious threat in a conflict between major powers. Mr Putin told his Defence Minister and the chief of the military’s general staff to put Russia's nuclear forces in a "special regime of combat duty". According to the US Congressional Research Service, Russia's nuclear forces consist of both long-range, strategic systems — including intercontinental ballistic missiles, submarine-launched ballistic missiles, and heavy bombers — and shorter and medium-range delivery systems. The order said that nuclear weapons were treated "exclusively as a means of deterrence" to be used as "an extreme and compelled measure" and the decision to use them would be made by Russia's president. Ukraine's Foreign Minister says Vladimir Putin's order to put Russian nuclear forces on high alert was calculated to put pressure at the start of talks, but that Kyiv would not be cowed.