Probably command, as they all produce and export important goods.
One of the first exchanges, the horse.
The Lend Lease Act was an attempt by the United States to support other nations within the Allied Forces during World War II. Under this program the United States provided other Allied nations with food, oil, and material from 1941 to 1945.
I got the answer wrong so I just deleted all of it just look at the one above mine.
It is important because without it citizens would not be able to choose the people who will run their government. It is also a major responsibility. Those that do not vote are failing to carry out a civic responsibility. They are also handing over their political power to views they may oppose.