The correct answer is D. Countries sometimes seek allies to preserve the balance of power.
Explanation
The image shows a graph in form of balance that describes the alliances between countries during World War I. In the right part, is shown the main triangle of the Triple Alliance in which were Italy, Germany, and Austro-Hungary (Serbia), also in the below part is Romania who allied a year after (1883) to be in this coalition in 1882. On the left side are shown the countries involved in the Triple Entente, which were Great Britain, Russia, Japan, and France also at the bottom was the Balkan League that joined this collation in 1912 (several years after the formation of the alliance). This image shows that the alliances had a similar number of members to have a balance of power during the war. Also, the form of balance allows concluding that there was equality of forces between both factions. Therefore, the correct answer is D. Countries sometimes seek allies to preserve the balance of power.
The Urgent responses that in involving the military are:
- A revolution
- An act of terrorism
- Nuclear weapon attack
- Political riot and others
<h3>What is U.N responses involving the military?</h3>
The UN is known to be the United nations and it is said to be a body that often deploy some military personnel for service in regards to peace operations.
Note that the UN military personnel can be called in response are:
- The Protection of civilians and UN personnel.
- To look and handle a disputed border.
- To look and handle as well as observe peace processes in regards to post-conflict areas
- They give security across a conflict zone;
- They give security during elections, etc.
Hence, The Urgent responses that in involving the military are:
- A revolution
- An act of terrorism
- Nuclear weapon attack
- Political riot and others
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I am not going to answer in a paragraph of 125 words, but I will give you the answer to the first question; The United States didn't want another country to fall to communism. They officially got involved after the attack of the Gulf of Tonkin (U.S destroyers were stationed there and a radio came in that said they had been fired upon by North Vietnamese forces). (45 words BTW).
I think it’s c. i mean im 95% sure