How did the nationalism cause world war 1?

Who ever answers first gets ! trade in the vedic age led to a.the rise of kingdoms because of the importance of controlling land and long-distance travel routes b.the building of an extensive system of roads because of the difficult terrain c.the creation of a large banking class because of the need to exchange different currencies d.the development of a centralized government that controlled the economic decisions of its people

What was the result of the america's failure in vietnam

The data in the timeline best support the conclusion that the united states supplied arms and gave other support to the allies in order to