Exactly that, they also carried supplies and fuel externally as their simply wasn&#x27;t space internally.<p>They where much smaller than modern tanks and didn&#x27;t have autoloaders so they where incredibly cramped.<p>Modern armoured warfare is largely a battle of logistics as keeping a tank in the field requires a huge amount of resources and manpower.<p>Comparison to submarines of the era is a good one, submarines have been one of my enduring fascinations especially WW1 and WW2.