Tuesday’s Vancouver summit on North Korea underscores how impossibly difficult the standoff between Washington and Pyongyang has become. The summit, co-hosted by Canada and the U.S., was billed as an attempt to reinject diplomacy into a situation that is becoming increasingly dangerous. But in opening remarks by key foreign ministers from the 20 countries invited to Vancouver to deal with the crisis over North Korea’s development of nuclear weapons, there was little talk of diplomacy. In fact, both U.S. Secretary of State Rex Tillerson and Japanese Foreign Minister Taro Kono lauded countries that have broken off diplomatic relations with the North, urging more to do the same. Kono said it was “naïve” to read too much into the North’s sudden decision to reopen talks with South Korea. Pyongyang, he said, was merely trying to drive a wedge between South Korea and its allies.