What Trump can learn from Cold War before meeting Putin and Kim Jong-un

What the Cold War meetings and Trump's potential ones have in common is an open agenda and lack of the painstaking months of diplomatic preparation

Donald Trump’s combative new foreign policy team should look at two precedents as the US president pursues summits with the leaders of Russia and North Korea, according to former diplomats and historians. One is now considered a historic success, the other an unmitigated disaster.

Negotiations between Ronald Reagan and Mikhail Gorbachev in Reykjavik in 1986 helped reverse the nuclear arms race and usher in an end to superpower confrontation. An earlier encounter in 1961 between John F. Kennedy and Nikita Khrushchev in Vienna came close to causing World War III. 

With a stalled arms-control regime, a broken US-Russian relationship and peace on