During world war 1, the arrival of american troops bossted allied morale because they

How many battles were confederate victories? (specifically: major battles)

Which of the following was a factor in the development of the english common law ?

One drawback of voluntary trade is that it a. requires two groups to use a common language b. can make one group dependent upon another for necessary goods c. doesn't occur unless there is a shortage of goods for at least one group d. forces groups to rely on themselves to produce all the goods they need