Answer:
Two examples of walls built by countries would be the Berlin Wall in Germany and the Israel- Palestine wall.
The Berlin wall aimed to protect the Eastern bloc, the communist bloc, from occidental Germany and its ideology.
Step-by-step explanation:
The Israel-Palestine wall, also known as the Israeli West Bank wall, was built by Israel to protect the country against terrorist acts. Palestine and international organizations claim that it is racist and that it creates tension between the two parts.
In 1961 East Germany constructed the Berlin Wall. The aim was to stop migration from West Germany to East Germany and allow East Germany to grow with its ideology.