Editing All Red Line (section)

==Completion==
The [[Committee on Imperial Defence]] reported in 1911 that the All Red Line was complete. The network had so many redundancies that 49&nbsp;cuts would be needed to isolate the United Kingdom; 15 for Canada; and 5 for South Africa. Many colonies such as South Africa and India also had many land lines. Britain also possessed the majority of the world's underwater-telegraph deployment and repair equipment and expertise, and a monopoly of the [[gutta-percha]] insulation for underwater lines.{{r|kennedy197110}}

The 1911 report stated that the [[Imperial Wireless Chain]] should only be a "valuable reserve" to the All Red Line, because enemies could interrupt or intercept radio messages. Despite its great cost, the telegraph network succeeded in its purpose: British communications remained uninterrupted during the [[World War I|First World War]], while Britain quickly succeeded in cutting Germany's worldwide network.<ref name="kennedy197110">{{cite journal |last=Kennedy |first=P.M. |date=October 1971 |title=Imperial cable communications and strategy, 1870-1914 |journal=[[The English Historical Review]] |volume=86 |issue=341 |pages=728–752 |doi=10.1093/ehr/lxxxvi.cccxli.728  |jstor=563928}}</ref>

The Pacific Cable Board laid a duplicate cable between Canada and New Zealand between 1923 and 1926, using the cable-laying ships ''Dominia''<ref>{{cite web |title=CS ''Dominia'' |series=History of the Atlantic Cable & Submarine Telegraphy |website=atlantic-cable.com |url=https://atlantic-cable.com/Cableships/Dominia/ |access-date=2020-12-17}}</ref> and ''[[CS Faraday (1923)|Faraday]]''.<ref>{{Cite news |title = Local and General News |date = 1926-11-17 |newspaper = New Zealand Herald |url = http://paperspast.natlib.govt.nz/cgi-bin/paperspast?a=d&cl=search&d=NZH19261117.2.44&srpos=163&e=-------100--101----0raglan+1916-ARTICLE-&zto=1 |access-date = 2016-01-01 |pages = 12}}</ref>