We've certainly planned for single allies going unhinged - but what we didn't plan for was us going unhinged and causing all our allies to take retaliatory actions. If France, Denmark, Germany, Britain - any one of them was swept up in nationalistic fervor and turned their back on our multi-lateral alliances we could easily weather that storm... when it's us though, that threatens the USD's acceptance as the defacto trading currency especially at a time when BRICS is semi-coherent and we're weathering a recent inflationary burst. This is like a perfect storm.