What group of people brought iron plows to india

"a government in which power is divided between state and national levels". federalism is a system of government in which entities such and state and province, share power with the national government.

"a shortage of traditional labor created new opportunities in the workplace. a major cause of the internment of japanese americans during world war ii was. racial prejudice. in the early 1940's, the "destroyers-for-military-bases deal" with great britain and the lend-lease act were evidence that the united states."

it made them more prductive and efficent but with the change of polcies less and les got into the navy