They got help from people
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.
Most forms of paper currency, regardless of monetary value, possess a watermark which could be found when the bill is held up to the light. The watermark usually depicts a famous citizen of that nation or denomination numeral.
The answer for this question is tropical rain forests
