Editing Tank classification (section)

===Interbellum===
{{main|Tanks of the interwar period}}
British tank designs in the immediate post-World War I era were developments along the same design as the Mark A and were named as Mediums being around {{convert|18|LT|t ST|0|abbr=on}}. The first tank to enter service that broke with the design was known as the "Vickers Light Tank" (it weighed about {{convert|12|LT|t ST|0|disp=or}}). It was renamed as the [[Vickers Medium Mark I|Medium Mark I]] in 1924 as the earlier heavy and medium tanks went out of service and lighter tanks – {{convert|5|LT|t ST|0|abbr=on}} or less – came into service.<ref>B. T. White, "British tanks 1915–1945", p. 35</ref>