How does gross domestic product (gdp) differ from gross national income (gni)?

GDP measures the money that a country makes in its own land, while GNI measures the money it makes in other countries and at home.

on april 6, 1917, the u.s. joined its allies--britain, france, and russia--to fight in world war i. under the command of major general john j. pershing, more than 2 million u.s. soldiers fought on battlefields in france.