When they found out how to split a atom they made the Atomic bombs to drop on Nagasaki And Hiroshima.
Ended the party--in the War of 1812, the northern Federalists lost trade with Great Britain.
Federalists believed the US must become an industrial country not a farming country. The Hartford Convention was a discussion of New England states leaving the Union. When the war ended, they no longer needed to leave because they could trade with Great Britain again and the country now were united in creating an industrial country with a national banking system. The Federalist party disappears and the US is a one party country until the 1828 election.
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Just like any big corporation in this country, corporations like to use their wealth and power to influence politicians and policies to their benefit. Multinationals operate in many different countries, so they have interest in the operation, production and consumption, which includes dealing with labor laws, environmental impact, taxes, etc. Every country is different, but the interest of the corporation is usually the same...profit. For this reason, they have a keen interest in the politics and politicians of every country where they do business.
East and West Berlin were separated by the "Berlin Wall" during that Cold War that existed between the United States and Soviet Russia, since this was meant to keep people in East Berlin from fleeing to the western half.