The global dominance of the U.S. dollar is a critical factor underpinning the American economy and national security, according to an analysis in The Wall Street Journal.

The dollar's position as the world's primary reserve currency provides the United States with significant advantages. Its widespread use in international trade and finance allows the U.S. to borrow more cheaply, smooths out global economic shocks, and enhances the country's influence on the world stage. Should the dollar lose this status, the economic and security implications for the U.S. would be substantial.

This dominance is not without its critics or potential challengers. However, the argument presented is that the loss of this status would impose significant costs on the U.S. economy, potentially leading to higher interest rates, increased inflation, and a diminished capacity to fund its national security objectives. The interconnectedness of the global financial system means that a shift away from dollar dominance would have far-reaching consequences for international trade and investment, with the U.S. bearing a significant portion of the impact.