I believe the answer is: To control trade along the Mississippi River.
By controlling the Mississippi river, Thomas Jefferson believe that they could eliminate british influence in products distribution to different states. He counted that the amount of products transported from this river could accounted to around 500 million tons of shipped goods per year.
<em>If I were a settler in the American West, I would think Manifest Destiny is believable. This is because it’s such a huge leap for the country as they are getting about 2x the land they already have. I would be so shocked about it, since America is getting more land for farming, mining, etc... This would improve my living situation and money if I were there, because more land means more room to make money. I would be so grateful for Manifest Destiny at the time.</em>
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He was referring to dear ol friendly ol m8 redneck
Answer;
He worked to help Soviet Jews immigrate to Israel.
Explanation;
-A major contribution of Natan Sharansky was that he worked to help Soviet Jews immigrate to Israel.
-Natan Sharansky was an Israeli politician, human rights activist and author who, as a refusenik in the Soviet Union during the 1970s and 1980s, spent nine years in Soviet prisons. Through his efforts he helped the Soviet Jews to immigrate to Israel.