I suppose you meant covert operation, and in that case it’s the Bay of Pigs invasion.
Based on the information you gave me the best that would fit is A due to the fact that vertical integration means “the combination in one company of two or more stages of production normally operated by separate companies.”
With the establishment of yellow stone park, there was a huge damage done to the economy of the country but it would have the world's largest geysers.
<u>Explanation:</u>
The Yellowstone National park was established in 1872 in the United States of America. It got very famous because it had the most famous geyser and more than half of the geysers in the whole world and had great biodiversity in it. It also got famous because of it's huge size.
But because of the volcano in this national park, there is huge loss done to the economy of the country. If put in dollars, the loss triggered by the volcano is approximately $3 trillion which is around 16% of the GDP of the country.
I don't think that is history.
<span>provoked by a treaty-violating ultimatum to surrender their sacred Black Hills (Paha Sapa), where an expedition under Custer discovered gold in 1874. In June 1876, driven by converging army columns, a unique concentration of Sioux and Cheyenne/Arapaho in southern Montana first repulsed a 1, 000-man column under Crook at the Rosebud and then destroyed Custer's command at Little Bighorn. </span>
