Through time they changed it based on problems on hand, and the changes through time.
Sorry if that's not a sutable answer
John Jay's treaty sought to settle outstanding issues between the two countries that had been left unresolved since American independence.
Tanks could be used to open a hole in enemy lines, but the burnt of the fighting must be done by infantry units. Early tanks for the allies had limited transverse movement for the turret, because their primary purpose was to serve as a gun platform for the infantry units coming behind them.
Because of the weakness of non-states (ones that werent official, just groups of people who called themselves states), and European powers had strong econimies and a well organized government. Hope this was useful :P
