<span>The Intermediate-Range Nuclear Treaty is an agreement signed by the US and the USSR which aimed to eliminate nuclear weapons. This lead to the de-escalation of Soviet/American tensions.</span>
Instead of retreating from West Berlin, however, the U.S. and its allies decided to supply their sectors of the city from the air.
5- Europe, the second wave was either Germany or Ireland which are both in Europe
In order to find the main idea of a text you must apply some effective reading strategies:
Step #1 - You must preview the text. That means that you need to look at any picture in the text. You also need to read the title and subheading. After that, you must read the first and the last sentence in each paragraph. This must be done very quickly.
Step #2 - You must skim the text. Skimming is a powerful strategy. To skim you have to read the entire text very quickly. Do not stop reading if there are unknown words.
By applying these strategies, you will determine what the main idea is.