What connections existed between gorbachev desire to improve the soviet union and the soviet unions relationship to the united states

In 1819, what did the united states obtain from spain for $5 million?

What was a major failing of the united states government under the articles of confederation?

When gandhi reached the arabian sea at the end of the salt march, he picked up raw salt from the water and made a declaration: “with this, i am shaking the foundations of the british empire.” how do you think this quotation is symbolic of gandhi’s works and philosophy?