cato institute:

Neatly defining President Trump’s foreign policy has never been easy, characterized as it is by contradictory impulses, fragmentary ideas, and strains of paradox. However, on the two most arresting national security issues at the top of Trump’s agenda—Iran and North Korea—his approach is plain: aggressive confrontation is good; diplomacy is bad.

The problem is that, even if Trump himself is not determined to go to war with either of these countries, he is making it far more likely.

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