On the highest level, the US's action to end global trade with the US would be necessary to threaten war with credibility. On the ground level, going by typical

On the highest level, the US's action to end global trade with the US would be necessary to threaten war with credibility. On the ground level, going by typical norms, an actual war would be required for an electorate to tolerate such a large price or tax increase for essential goods. Here are a few options taken from recent headlines: - A war with Iran that would result in international sanctions, including steep sanctions from their trading partners. - A direct conflict with China. - The international sanctions resulting from that forced annexation of Greenland that they won't stop talking about for some reason. - The same for Canada. (!?) - Basically any other unilateral military action, since most of the world was a major trading partner of the US in the Obama era.