<span>mobilization of the country's entire population and economy to produce the soldiers, food supplies, ammunitions and money necessary to win the war. </span>
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.
Each was a natural trading partner.
Taking a side in that conflict would have had bad consequences for the U.S., the proverbial no-win situation.