Answer:
The last one
Explanation:
Because the veitnam war was over before the 80's right
Grand Coulee Dam<span> is a gravity </span>dam<span> on the Columbia River in the U.S. state of Washington, built to produce hydroelectric power and provide irrigation water. It was constructed between 1933 and 1942, originally with only two powerhouses.</span>
Haiku
Gallantly streaming,
the flag dances with the wind.
Democracy lives!
Either communist oppression or Germany's strength. I'm not sure.