The correct answer is the United Nations. As of now however, there are 193 countries, which is a lot more than in 1945 when there were 51 member states. The territory in New York where the headquarters are are considered to be international territory. It is the most famous international organization in the world.
They have different namess.
Nuclear weapons are a very dangerous technology, especially when multiple nations obtain them. The concept of Mutually Assured Destruction is very important in the affect of nuclear weapons on US Foreign Policy, because it was almost entirely what stopped nuclear war throughout the second half of the 20th century. Mutually Assured Destruction basically just means that if my nation fires our nuclear weapons, we will be met with equal fire that, when combined, will annihilate the world as we know it. American Foreign Policy was changed in that we had to be very careful with nuclear weapons because they create such large scale damage that it would be inevitable that some damage be inflicted back on us.
Europeans used their advantages of strong economies, well-organized governments, powerful armies and superiror technology to increase their power and allowed western imperialism to spread quickly.
It’s B. Reason-What other sources from that time are important from a historian POV to be able to know what other people said when whatever was going on. Hope this helps, Please Mark as Brainliest