Answer:
By 1880, the transcontinental railroad was transporting $50 million worth of freight each year. In addition to transporting western food crops and raw materials to East Coast markets and manufactured goods from East Coast cities to the West Coast, the railroad also facilitated international trade
Montesquieu is describing the "Separation Of Powers" which is important because it states that government should be split up into 3 branches the Legislative(which is Congress),The Executive(the President), and the Judicial(the Supreme Court). Montesquieu wanted this so that power could be divided equally and so that it wasn't just one big Government with all the power.
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.
The primary problem that socialist thinkers wanted to solve was the problem associated with capitalism--primarily that it seemed like wealth was being consolidated at the top of the income class, and that the workers were not able to advance economically in society.
