"mr. gorbachev, open this gate! mr. gorbachev, tear down this wall! " - ronald reagan, 1987 in this reagan quote, the "wall" to which the president refers is located in the city of

berlin wall

Explanation:

they were at war so tho start it the teared down the berlin wall

answer: a video that encourages an armed attack on the government.

explanation: it is a violent overthrow to the government.

hope this : )

the united states began searching for a way to reduce oil

-agarvated