Here are 3 goals of foreign policy,
1.For the exchange rate to be the same in all countries,
2.There to be so same numbers on the bills, ( 1,5,10,20,50,100 ) And not ( 1000,2000 and so on )
3.For it to all be the same currency,
I don’t know if this is right but I am guessing Britain and France
It didn't. the civil war was in the 1860's while the industrial revolution was at the turn of the 20th century.