Why missing archives should limit a naval history book

Why did your book omit Royal Australian Navy and Royal Canadian Navy material?

Archive access was blocked, so the book was narrowed rather than substituting paraphrases of other historians' research for primary work.

Royal Australian Navy and Royal Canadian Navy material was omitted from the book because pandemic travel restrictions prevented access to the relevant archives and the original research required for those chapters. Rephrasing work already done by other historians was rejected as an inadequate substitute. The resulting scope reflects limits on evidence and attribution rather than indifference to the omitted navies.