In the context of the relatively lagging industrial and military development of the United Kingdom, the financial industry can be said to be Britain's last straw, so Britain will inevitably suppress any currency that might threaten the status of British Pounds.
So not only the Rhine Shield in East Africa, but also the US Dollar, Franc from France, and Mark from Germany are subject to Britain's suppression.
Among these, the US Dollar and Franc had already become the main international currencies only second to British Pounds before the 20th century. For example, the US Dollar ranked second in the share of foreign exchange reserves worldwide, thanks to the United States' strong economic and industrial power, as well as its highly developed international trade.
