Who was the first commander of the army of the Potomac, who trained his men to fight but was reluctant to use them in battle

Apex plz i’m almost done if i get this all right

Which of the following was not an effect of westward expansion? a. native american tribes suffered confinement on reservations. b. native americans learned new techniques of irrigation. c. many native americans died from the spread of disease. d. natural resources were depleted from misuse by white settlers.

During the era of european expansion, what was the biggest reason for spain’s push for exploration?