During World War I, the arrival of American troops boosted Allied morale because they refused to join to battle at the Meuse-Argonne.
provided more than one million reinforcements.
taught Allied troops how to build trenches.
forced German troops to evacuate France and Belgium.

Which of the following episodes led to widespread charges that president reagan was not in adequate control? a. the u.s. retreat from lebanon after the bombing deaths of 241 u.s. marines as they lay sleeping in their barracks near beirut b. the trading of arms for hostages and the illegal funding of a right-wing insurgency in the iran-contra affair c. the sale of millions of acres of public lands to private corporations by the department of interior d. the proposal to congress, year after year, of federal budgets with huge deficits that ultimately ended up tripling the national debt

Why is the sons of liberty a difficult group to describe ?

Which events are correlated but do not necessarily have a causal relationship?