The Royal Sovereigns' 13.5-inch armament leads into a wider question about naval competition. Britain and Germany faced a numerical contest in which 12-inch British and 11-inch German ships might otherwise have continued. American, Italian, and Japanese developments created a broader technical race that encouraged movement toward 13.5-inch, 14-inch, and eventually 15-inch guns. Capital-ship design therefore reflected overlapping numerical and technological rivalries rather than one bilateral race alone.
Notable Point · 46:22-47:30
The wider naval race behind bigger guns
The closing comparison links British gun-calibre choices to competition with Germany, the United States, Italy, and Japan.