Last week’s “Liberation Day” marked a kind of D-Day in the effort to reorder the international economic system. That reordering is desperately needed to address the system’s imbalances, which have led to deindustrialization and annual trillion-dollar trade deficits for the United States. But remember, far from striking World War II’s decisive blow, D-Day was just the start of the European campaign. Eleven months of vicious fighting followed, with more than 100,000 Americans killed before victory was secured. With the tariffs, too, success or failure depends on what happens next, and the nation will have to bear real costs while the...