Donald Trump has effectively implied he would unilaterally "Jexit" Japan from its longstanding alliance with the U.S., tossing aside Washington's closest ally in the Pacific. Given the high stakes involved, America cannot afford this loose cannon blasting away at the region's structural foundation.
Notwithstanding Trump's posturing, his failure to understand the depth and complexity of America's post-World War II relations with Japan and other regional partners lays bare a vision of the U.S. without allies as hollow as some Brexiteers' notions of Britain as an island unto itself.
