Should the US stay involved in NATO and why plzzz helppp

yes

Explanation: NATO supports and protects the economies of Europe which are critical to the health of the US economy.

tearing down the berlin wall.

populist movement, in u.s. history, politically oriented coalition of agrarian reformers in the middle west and south that advocated a wide range of economic and political legislation in the late 19th century. thus in 1892 their leaders organized the populist, or people's, party, and the farmers' alliances melted away.