The US dollar has reached its highest value in 13 months on the global market. This surge is being reflected in Vietnam, where the domestic exchange rate has also hit a peak for selling. The global increase is driving up the price of the dollar within the Vietnamese financial system. Details regarding the specific rates within Vietnam were not provided in the source text. This upward trend suggests increased demand for the US dollar internationally. Further analysis would be needed to determine the factors contributing to this global strengthening of the dollar and its impact on the Vietnamese economy. The situation warrants monitoring for potential effects on import/export activities and overall financial stability.