President Donald Trump's decision to pull out of a landmark arms control treaty with Russia is turning the worst fears of a dangerous weapons race into reality.
The US and its allies are laying the groundwork to deploy new intermediate-range missiles in Europe for the first time since they were banned in a 1987 treaty, a move that would prompt a tit-for-tat Russian response. With a second nuclear pact likely to expire in two years, the risks of confrontation are growing.
